Lambda Core: Gensokyo

PROLOGUE Unknown Guest

Black screen. A faint voice, distorted like a dimensional echo: > “It isn’t about survival alone. It’s about how they treat you when you do. Every path is yours… including the ones that end in death.” - Unknown The line fragments like a corrupted G-Man intro. Hard cut to black.

23:00 - Eientei, Gensokyo Reisen and Tewi arguing. Camera: first-person Eirin, quietly pouring tea for Kaguya. Tewi (JP VO): ”Hey! Reisen! That’s mine!” 「ちょっ、レイセン！これは私のだって！」 Reisen: “I said first come, first served!” 「早い者勝ちだって言ったでしょ！」 Sakuya-like clattering, dishes, warm light, Eientei calm as always. Camera switches to a wide shot of everyone finishing a late dinner. Transition to 00:00.

00:00 - Eientei Quiet Hallway Everyone heads out. Eirin remains, cleaning up the last dishes -- alone, silent, methodical. A sudden sound: (KRAK--THUD!) Wood splinter + metallic clatter. Camera: Instant snap to first-person, Eirin freezing mid-movement. Centered subtitle: UNWANTED GUEST

Exterior - Behind Eientei Eirin pushes the back door. Humidity, cicadas, moonlight. Broken crate on the ground -- half crushed. Eirin kneels, brushes aside debris. Inside: a Black Mesa tactical crossbow, pristine, glowing faintly. She blurts: Eirin: “What the hell…?” 「……何、これ？」 She lifts it. Weight too real. Cold steel. Modern design -- alien to Gensokyo. Inside the broken crate: a spray-painted Λ (Lambda) symbol. Eirin’s pupils tighten -- Source Engine-style close-up. She heads back inside, crossbow in hand.

Patrol Sequence - Bamboo Forest First-person sequence, flashlight cone, atmospheric fog. Eirin checks blind spots, area where humans often get lost, small pockets of distorted air. In the distance: faint orange glow between bamboo, flickering like hazard lights. Eirin murmurs. Eirin: “Who’s there?” 「……誰？」 She approaches cautiously. Through leaves, she sees a man collapsed against a tree. Orange glow = HEV suit emergency beacons reflecting on the grass. Suit voice faint: > “Seek medical attention.”

Next to him: an ID card, dirty but readable. ‘Gordon Freeman - Black Mesa Research Team’ Background music slowly rises into Joel Nielsen - Office Complex (Mesa Remix) just like the original Black Mesa intro reveals. Eirin’s eyes widen -- shock, disbelief, calculation. Eirin: “…!!!” 「……っ！」 A rustle. Tewi appears from behind the bushes. Tewi: “Eirin? What are you… HUH?!” 「ありゃ？エイリン、何して──…えッ！？」 She stares at Freeman. Tewi: “Why is a human here?! You brought him?!” 「なんで人間がここに！？エイリン、これ連れてきたの！？」 Eirin shakes her head, lifts the crossbow. Eirin: “No. I saw the glow from afar. And… this was dropped at Eientei.” 「違う。遠くで光が見えたの。それに…これが落ちてた。」 Tewi spots the crowbar beside Freeman. Tewi: “Whoa! He has this too! Who IS this guy…?” 「うわっ！これも持ってる！何者なの…？」 Camera slowly zooms on Freeman’s face. HEV suit flashes again. > “Seek medical attention.” Eirin’s voice trembles slightly: Eirin: “A crossbow… a crowbar… What does any of this even mean…?” 「クロスボウ、バール… ……これは一体、何を意味しているの？」 Hard cut to black. “Loading...” text appears.

CHAPTER I Resonance Amplification

03:00 - Eientei, Clear Night Eientei’s courtyard is filled with low chatter—multiple factions gathered, their voices overlapping like static in a quiet facility. Inside, the camera drifts across a dim hallway. On a shelf, a crowbar and crossbow sit under moonlight.

Sakuya: “Cold… and heavier than it looks.” 「冷たい……それに、見た目より重いわね。」 She rotates the crowbar slightly, metal ringing. Patchouli : “Don’t be deceived by its shape. That weapon carries a history… and it’s not a pleasant one.” 「形に惑わされないで。これはただの鉄の棒じゃないわ。 持ち主の“過去”が染みついてる。」

Sakuya’s eyes narrow -- monologue overlays. Sakuya (monologue): “A mortal carrying something like this… What kind of human lands in Gensokyo with a weight that shakes every faction?” 「ただの人間が、こんな“重さ”を持つなんて…… こんな存在が幻想郷に現れた理由、気にならないわけがない。」

Hard cut → Recovery room. Freeman lies unconscious. Eirin steps back after completing medical checks. Reisen, Kaguya, Reimu, Keine, Yukari all present.

Eirin: “His suit defies every medical category I know. Recovery shouldn’t even be possible. Not for someone like him.” 「このスーツ……医学の分類に一つも当てはまらない。 普通なら回復なんて不可能よ。 この男は“生きていること”自体が異常なの。」 Reisen: “Gordon… Freeman? Black Mesa?” 「ゴードン……フリーマン？　“ブラックメサ”？」 Keine: “His origin is nowhere in our history. This man isn’t from any world we recognize.” 「歴史のどこにも記録がない。 この男は……私たちが知る世界の住人じゃない。」 Reimu: “A crossbow dropped into Eientei without any spiritual trace? Great. That’s not worrying at all.” 「霊力反応もなく、突然弓が落ちてくる？ ……はぁ、また面倒なのが来たわね。」 Yukari: “Nothing seems damaged. No boundary tear. And yet… his existence feels fundamentally incompatible.” 「結界も境界も乱れていない。 それでも……彼の存在そのものが“異質”なのよ。」

The door slides open slightly. Youmu: “Excuse us.” 「失礼します。」 Yuyuko: “My, what a fascinating presence. Old… yet new.” 「まぁ……面白い気配。古くて、でも新しいわ。」

Reisen accidentally triggers the suit. Suit: “Initializing suit… OK.” Everyone turns sharply. Music cue: Joel Nielsen - Anomalous Materials Suit boot sequence plays with low reverb: “Initializing HEV Suit Systems...” “Vital Signs… OK.” “Jump Charge… OK.” “Exoskeleton Ready.” “Initialization Complete. Have a good day, Gordon Freeman.”

Eirin: “Reisen… I told you not to touch anything.” 「レイセン……触るなって言ったでしょ。」 Reisen: “S-sorry!! I didn’t know! What is this thing??” 「ご、ごめん！ でも、こんなの初めて見るってば！」

Freeman awakens – First-Person Perspective Blur → clarity. Suit: “Warning. Resonance energy detected. Signature incompatible. Source unidentified.” Camera moves from Yuyuko → Youmu → Yukari → Eirin.

Eirin: “Gordon Freeman.” 「ゴードン・フリーマン。」 He looks at her. Silent, steady. Eirin’s inner voice overlays softly. Eirin: “He carries something no human should. What happened to you…?” 「この男……人間が持つはずのない何かを背負ってる。 いったい、何があったの……？」

Fade out. Title appears: Resonance Amplification Then one final line, Eirin: "You can reason with any mortal. But with him, not yet." 「普通の人間なら、理由をつけて話せる。 でも彼は……まだ無理よ。」 “Loading...” text appears.

CHAPTER II Echoes From The Past

03:15 - Eientei, Clear Night Freeman sits upright, still dazed. Camera locks into a first-person Eirin POV, stepping closer.

Eirin: “Doctor… Freeman?” 「ドクター……フリーマン？」 Freeman inspects his hands. Slow, calculating, like someone checking if reality still obeys physics. The others immediately react.

Patchouli: “That suit… no human could’ve built it. Its physiology adapts instantly to this world.” 「このスーツ……人間が作ったとは思えない。 幻想郷に “適応” しているなんて、普通じゃないわ。」 Sakuya: “Its energy signature is unlike anything I’ve seen. When I tried to stop him earlier… I felt it resisting me. Hard.” 「さっき止めようとした時…… スーツの“力”が、私を弾いた。 あんなの初めてよ。」 Youmu: “Reimu… can you really trust him? That suit’s voice alone gave me chills.” 「霊夢……本当に彼を信じられるの？ スーツの声を聞いただけで、身体が震えたわ。」 Reimu: “I don't know. But ignoring it won’t help either. Everything about him feels… wrong. But not evil.” 「わからない。 でも、無視できる話でもないわ。 “おかしい” のよ全部。 悪意じゃなくて……別の何か。」

Kaguya: “We must be careful. Someone like him… isn’t handled by simple judgement.” 「慎重に行くべきね。 彼みたいな存在は、“普通の判断” では扱えない。」 Yukari: “His aura is shallow on the surface… but profoundly heavy underneath. He’s carrying something beyond our assumptions.” 「表面だけ見れば薄い。 でも本質は……重い。 私たちの想定を超えてるわ。」 Yuyuko: “My spirit senses brushed against his. It’s faint… but connected. If he dies, something reacts.” 「彼の魂に、私の霊が “触れた” の。 薄いけど……確かに繋がってる。 もし彼が死んだら、何かが “動く” わ。」

Reisen: “Freeman… don’t tell me, your world was destroyed too?” 「フリーマン……まさか、 あなたの世界も“壊れた”の？」 Freeman gives the faintest nod. Silence falls like gravity.

Keine: “That’s enough. You don’t need to explain the pain you carry. Rest first, Freeman.” 「もういいわ。 その痛みを説明する必要はない。 今は……休みなさい、フリーマン。」 But the moment she finishes--

Suit: “Warning. Unknown energy detected.” “Calibration failed. Reactive armor activated.” “Weapon systems online.” Freeman raises a hand: “shhh.” The whole room freezes. Camera cuts → outside Eientei.

Outside - Tewi & Mokou Tewi: “That suit sounds terrifying… but I don’t feel malice from him at all.” 「スーツは怖いけど…… 彼自身からは悪意を全然感じない。」 Mokou: “Right? And humans don’t wear things like tha—“ 「そうだよな？ あんな装備、普通の人間が――」

A radio crackle tears the air. A thin fracture echoes across the Hakurei Barrier. Osprey rotors appear in the distance. Tewi’s ears snap upward. Radio: "Unknown sector. Orders?" 「不明セクター、指示を？」 "Proceed landing." 「着陸を続行せよ。」

A rotten, distorted aura hits Tewi like a punch to the stomach. Tewi: “…what… is that?” 「……なに……この気配……？」

Music cue: Joel Nielsen — We’ve Got Hostiles Tewi: “THERE! I heard a radio— three Ospreys!!” 「そっち！ ラジオの声が聞こえた！ オスプレイが三機も！！」 Mokou: “W–what!?” 「はぁ！？ 何だって！？」 Vibrations shake the ground. Inside Eientei, everyone senses it simultaneously.

Reisen: “Someone’s trying to kill Freeman!” 「誰かがフリーマンを殺しに来てる！！」 Yukari: “If they breach the barrier using that filth, we wipe them out.” 「こんな“汚れた力”で結界を破ろうとするなら…… 容赦しないわ。」 Reimu: “I don’t care who they are! No one invades Gensokyo!!” 「相手が誰だろうと関係ない！ 幻想郷を侵す奴は、絶対に生かして帰さない！！」

Freeman steps forward. Reisen tosses something, a crowbar arcs through the air in slow motion. He catches it with a practiced grip. Reisen: “Freeman, take this! And… I hope we can trust you.” 「フリーマン、これを！ ……信じてもいいよね？」

Combat begins – First Person Perspective – Gameplay Mode HEV suit humming. Your HUD glows orange. Freeman charges forward. Crowbar hits = 2–3 strikes → kill. (Youkai buff silently enhancing kinetic force.) Three youkai HECU fall.

Hard cut → Cinematic Mode CINEMATIC: Touhou extermination Sakuya “Three down.” 「三人、排除。」 Knives pierce through space-time.

Eirin: “You don’t belong here, except that scientist.” 「ここはあなたたちの来る場所じゃない。 ……あの科学者を除いてね。」 Arrows rained down on the youkai HECU.

Patchouli launches groundburst elemental ruptures. Youkai HECU are flung upward screaming. Youmu cuts down two marines in motion, clean, silent. Reisen melts three minds with red laser confusion. Only one youkai HECU remains, running.

Freeman intercepts. The marine looks up, terrified. Youkai HECU: “G-Gordon… Freeman?? H-how are you--“ 「ゴ、ゴードン……フリーマン！？ な、なんでここに――」 CRACK. Crowbar to skull. Silence. Moonlight + fractured clouds overhead.

03:20 - Aftermath Eirin approaches slowly.

Eirin: "You okay?" 「大丈夫？」 Freeman’s glare at the corpse freezes her.

Eirin: “So… these are the ones hunting you. Worse than any enemy I’ve ever faced.” 「こいつらが……あなたを追っていたのね。 私の知るどんな敵より最悪よ。」 Yukari: “Do you think this place is your playground? Don’t push your luck.” 「ここをあなたの遊び場だと思わないことね。 調子に乗らないで。」

Freeman turns, stoic, silent, but the message is clear: “Do you think I wanted to come here?” Reimu restrains Yukari. Reimu: “Stop! If he wanted trouble, the Hakurei Barrier would've shattered already!” 「やめなさい！ もし彼が本気で暴れる気なら、 結界なんてとっくに壊れてる！！」

Then, Freeman’s flashback. Black Mesa. Cascade. Corpses. Survival. The heroines feel it through resonance alone.

Reimu: “No way… that place… that’s not just hell. It’s hell inside hell.” 「嘘…… あんな場所…… 地獄どころじゃない…… “地獄のさらに奥”じゃない……」

Eirin: “Your existence isn’t recorded anywhere, yet your pain echoes louder than history.” 「あなたの存在はどこにも記録されていない。 なのに、その痛みは歴史よりも強く響いてる。」

Kaguya: “Escaping the moon wasn’t a mistake… but ignoring you would be.” 「月から逃げたのは間違いじゃなかった。 でも――あなたを無視することは、もっと悪い。」

Patchouli “Not everyone survives pain like that, Freeman.” 「普通の人間は、あんな痛みに耐えられないわ。」

Keine: “No one should bear that alone.” 「そんな重荷…… 一人で背負うものじゃない。」

Yukari “…Fine. If you need us, say something next time.” 「……わかったわよ。 必要なら……次はちゃんと言いなさい。」 Youmu & Yuyuko stand quietly behind him.

Youmu: “So someone carries a burden heavier than mine…” 「私より重い責任を背負ってる人も……いるんだね。」 Yuyuko “A human who crossed hell alive… that’s rare here.” 「この子、幻想郷には珍しいわね…… “生きたまま地獄を渡った” 人間なんて。」 Camera pulls back slowly. Eirin extends her hand, firm, respectful.

Eirin: “You’re not alone here, Freeman.” 「もう……一人じゃないのよ、フリーマン。」 Freeman grips her hand. Metal-clench SFX echoes. Title appears: Echoes From the Past Fade to black. “Loading...” text appears.

CHAPTER III Calibration

06:00 - Eientei (First-Person Perspective, Cinematic Mode, Free Look Only) Ambient: Dawn breeze, quiet tatami reverb, light metallic hum from HEV suit.

Sakuya enters with tea tray “Relax, Doctor Freeman.” 「リラックスして、ドクター・フリーマン。」 Freeman accepted the tea without hesitation, calmly. Eirin notices. “Doc, you don’t have to drink it that fast…” 「ドク、そんな急いで飲まなくてもいいのよ…。」

Reisen comments. “Hee… at least he looks calmer now. Honestly, I’m still shaken from last night.” 「ふぇぇ…少なくとも今は落ち着いて見えるよ。正直、私はまだ昨日のことで震えてるけど。」 Youmu analyzes. “His movements… honest. No tension at all.” 「彼の動きは…素直で、緊張がまったくない。」 Reimu enters with snacks. “Here. Cookies. Just… eat. And don’t cause trouble this early.” 「はい、クッキー。…食べなさいよ。朝から騒がないで。」

Tewi explodes with energy. “Finally! Chill time! FINALLY!!” 「やっと！やっと休めるー！！」 Reisen grills her. “Tewi, you get tired even when you don’t do anything.” 「てゐ、あんた何もしてなくても疲れるよね。」 Tewi defends herself. “HELLO?? I guarded Eientei with Mokou! And the air was creepy as hell!” 「はぁ！？昨日は私、妹紅と一緒に永遠亭守ってたんだよ！空気めっちゃ怖かったし！」

Mokou joins. “Yeah, but at least it’s safe now. Those things chasing him… weaker than I expected.” 「まあ安全になったけどさ。あいつを追ってきた連中…思ったより弱かったな。」 Keine muses. “I’m still confused why they appeared so suddenly.” 「でも、突然現れた理由はやっぱり謎のままね。」

Yukari drops a bomb. “But I’m more shocked that Freeman sensed the Hakurei barrier cracking. Only youkai, gods, or boundary manipulators can do that.” 「でも私が一番驚いたのは、フリーマンが博麗の結界の亀裂を感じ取ったことよ。 あれは妖怪か神、境界を扱える者しか分からないはずなのに。」 Patchouli processing. “And his suit absorbs this world’s energy… stabilizing it. That’s unusual.” 「それに彼のスーツはこの世界のエネルギーを吸収して安定させてる…異常ね。」

Eirin explains. “Yeah. Even though Reisen hit the wrong button yesterday, the suit adapted instantly.” 「そうよ。昨日は鈴仙が間違えてスイッチ押したけど、スーツが即座に適応したの。」

Yuyuko guesses. “So it acts like a spirit stabilizer~?” 「つまり…霊の安定装置、ってところかしら〜？」

Eirin confirms. “Exactly. If we understand this suit… we could recreate protection on his level.” 「その通り。もしこのスーツの仕組みを解明できれば…私たちも同じ防御力を得られるかもしれない。」

Kaguya tests him. “Freeman, when Yuyuko and Youmu released their spiritual aura… the suit reacted, right?” 「フリーマン、幽々子様と妖夢さんが霊気を出した時…スーツが反応したわよね？」 Freeman nods. Yuyuko & Youmu release spirit aura. HEV SUIT: “WARNING. HAZARDOUS MATERIALS DETECTED.”

Eirin celebrates. “Bingo. That’s the core mechanism.” 「ビンゴ。これが中枢の仕組みね。」 Reisen shocked. “Seriously??? From just that!?” 「え、マジで！？霊気だけで！？」

Eirin continues. “Yes. In his era, the suit was designed for extreme chemical and energy exposure.” 「ええ。彼の時代では、極限の化学物質や異界エネルギーにも耐えるよう作られていたの。」 Patchouli correlates. “Makes sense… so that mean--” 「なるほど…ってことは—」 Eirin confirms the big one. “Yes. The suit can neutralize spellcards and youkai energy.” 「ええ。このスーツならスペルカードも妖怪エネルギーも中和できるわ。」

Everyone freezes. “HA—————!?!” 「はあああああああ！？！？」

Eirin reveals the naked lore (blushing hard). “…There’s one more issue. The HEV Mark IV requires full skin contact for the neural interface. Which means… he wears nothing underneath.” 「…もう一つだけ問題があるの。 HEV Mark IV は神経インターフェースのために全身密着が必須なの。 つまり…その…中には何も着てないのよ。」

Collective meltdown. “…WHAT!?” 「なっ……なにそれっ！？！？」

Eirin panics. “S-sorry!! I shouldn’t have said that in front of him!!” 「ご、ごめんなさい！！本人の前で言うことじゃなかったわ！！」 Freeman facepalms (no line).

Tewi whispers. “He’s so calm it’s scary…” 「落ち着きすぎで逆に怖いんだけど…。」

Kaguya comments soft. “That’s exactly why he survived that world.” 「だからこそ…あの世界を生き抜けたのよ。」

Camera slowly pulls back. Their yapping continues softly. Freeman just sips tea like nothing happened. Fade to black. Subline appears: “Even a broken world needs a moment to breathe.” Text fades out. “Loading...” text appears.

CHAPTER IV Crossing Dimension

09:00 - Eientei Bright morning, sun just cleared the horizon. Interior feels calm, but the conversation starts with quiet tension.

Eientei Living Room (Cinematic Third → FP) Sakuya crosses her arms, gaze fixed on Eirin. Sakuya: “So, Eirin… what’s your plan for Doctor Freeman now?” 「永琳、これからフリーマン博士をどう扱うつもりなの？」 Eirin: “Hmm… all medical tools are ready. I’m thinking of guiding him, let him see more of Gensokyo firsthand.” 「ふむ… 医療の準備は全部整ってるわ。だから彼を連れて、幻想郷をもっと理解させようと思っているの。」 Reisen: “Not a bad idea… but we can’t just let him roam freely yet. We may accept him—but other regions? Not guaranteed.” 「悪くはないと思うけど… まだ自由にさせるのは危ないよ。私たちは受け入れてるけど、他の場所は…どうだろ。」

Patchouli: “Exactly. Too many variables if he walks outside. Observing how others react will be… valuable.” 「その通り。外に出れば不確定要素が多すぎるわ。周囲の反応を観察する価値は十分ある。」 Sakuya: “Anyway… it’s just four of us now. Everyone else already went home.” 「ともかく… 今ここにいるのは私たち四人だけ。他のみんなは帰ったわ。」 Eirin nods, turning to Freeman.

Eirin: “Doctor Freeman, mind checking the front area for a moment? Just wait outside for us.” 「フリーマン博士、少し外を確認してきてくれる？ そこで待ってて。」

Transition to First-Person Control - Freeman POV Freeman walks to the sliding door. He opens it, not Gensokyo. Instead: Floating Xen stone. Amber glow. Anti-gravity dust drifting in slow motion. Distant hum, exactly like the old resonance field.

Freeman silently closes the door. Opens it again. Same Xen view. Third time, same result.

The others enter frame behind him Reisen: “Freeman… what are you doing? You were supposed to wait, not--play with the door?” 「フリーマン… 何してるの？ 外で待つだけのはずじゃ… ドアで遊んでるわけ？」

Freeman steps aside and gestures: look yourself. Eirin approaches cautiously. Eirin: “Huh…? What are you—“ 「え…？ 何を…」

Door slides open. Silence. Breathing stops. A full Xen vista spills into the room, alien cliffs, bioluminescent fog, gravity ripples.

Eirin freezes. Eirin (shaken/annoyed): “Doctor Freeman. Explain. What world is this?” 「フリーマン博士。説明しなさい。これは… どこの世界なの？」

Freeman doesn’t answer, only gives a faint gesture: this wasn’t me. Sakuya narrows her eyes, voice calm but blade-sharp. Sakuya: “…If that’s the case, then we follow you. No arguments.” 「…そういうことなら、あなたに従うしかないわね。異論はないわ。」

Reisen: “Lead the way, doc. I can’t do anything here without you.” 「案内して、博士。ここじゃ私、本当に何もできない。」 Patchouli closes her book and floats a little closer.

Patchouli: “We can still use our abilities—but survival probability without him is… low.” 「能力は使えるけど… 彼なしでの生存率は低いわね。」

Eirin taps Freeman’s shoulder. Eirin: “No dying today. Understood?” 「今日は死なせないわよ。わかった？」 Freeman gives a slight nod.

Sakuya: “We’ll handle the creatures. You lead.” 「魔物は私たちが対処するわ。あなたは案内して。」

They step into Xen - First-Person Wide Shot The cave exit opens into massive floating islands. Blue fog. Organic arches. The iconic “heartbeat” hum of Xen.

Music starts: Joel Nielsen – Transcendent. Freeman lifts his hand slightly, pointing to a high structure, the teleport core. Dialogue atop the vista.

Eirin (soft): “Doctor Freeman… are these your deepest scars?” 「フリーマン博士… ここは、あなたの一番深い傷なのね？」

Eirin: “No answer needed. I get it. You carried this alone… and now we stand here as witnesses.” 「答えなくていいわ。もう十分伝わった。あなたはずっと一人で背負ってきた… 私たちはただ、それを見届けるだけ。」

Sakuya (gentle): “(faint smile) The more I learn about him… the more I understand why Remilia sent me and Patchouli.” 「（かすかな笑み）彼のことを知れば知るほど、レミリア様が私とパチュリーを選んだ理由がわかってきたわ。」

Reisen: "I don’t feel trauma from this place… but if we slip up once, we’re dead. He’s the key." 「私はここに“恐怖”は感じない… でも一度でも踏み外せば終わり。鍵は彼だよ。」 The camera tilts up toward the teleport chamber. The music swells. Fade to black.

Final Transition Text Subject: Gordon Freeman Observer: Yagokoro Eirin, Izayoi Sakuya, Patchouli Knowledge, Reisen Udongein Inaba Status: Leaving Gensokyo — Observation in Progress…

CHAPTER V Combined Divergence

Xen - Unknown Time Music cue: ambient low hum + distant resonance thumps [Scene Start — Wide Cinematic → FP] The Xen air shimmers,a combination of vacuum chill, low gravity sway, and leftover resonance scars from Freeman’s past. Eirin, Sakuya, Patchouli, and Reisen follow behind him, every step echoing on the biomechanical ground. Creatures are absent; only the remains of old Black Mesa expeditions linger.

Climb to the Broken Platform Sakuya climbs the rusted ladder behind Freeman. Sakuya: “Damn… even my own energy feels locked here.” 「くそ… 私の力まで封じられてる感じね。」

Patchouli “I warned you, spellcasting works, but everything has a cost here. That might be one of them.” 「言ったでしょう。魔法は使えるけど、代償があるの。これはその一つかもね。」 Eirin: “I see… looks like we’re getting close.” 「なるほど… 目的地が近いみたいね。」 Reisen: “Yeah. But I’m curious... what exactly is left in this place?” 「うん。でも気になるな… この場所に何が残ってるんだろ。」

[Cinematic FP — The Small Portal – Trigger 1st True Ending Key] They arrive at the edge: a massive gap, impossible to cross—except for the tiny pulsing Xen portal floating mid-air.

Eirin: “Seriously? We’re this close, and the path is like this?” 「はぁ？ ここまで来て、道がこれって？」 Sakuya (looks down, heartbeat quiet but steady) “Hm. Looks like our route ends here.” 「ふむ… どうやら行き止まりね。」

Patchouli “There must be another way. I can feel spatial distortion... something akin to teleportation.” 「別の方法があるはずよ。空間の歪みを感じる… 転送系の何かね。」 Reisen: “Doctor Freeman… can this bridge the gap? There’s another one glowing on the far side.” 「フリーマン博士… これで向こうへ行けるの？ あっち側にも同じ光があるよ。」 Freeman nods once.

Freeman tests the portal He steps in. Instant relocation. Middle platform.

Reisen: “Whoa—! It works!” 「うわっ… 本当に行けた！」 She jumps in right after.

Eirin: “Heh… just like Yukari’s gaps.” 「ふふ… 紫のスキマみたいね。」 Sakuya: “No time to waste.” 「急ぎましょう。」 Everyone else follows through.

[Cinematic — The Deep Xen Abyss] They stop at the edge of a colossal void, an endless, shifting Xen pit. Patchouli closes one eye to measure trajectories.

Patchouli: “…The energy here is distorted. Even I can’t predict momentum in this gravity.” 「…この重力、エネルギーが歪みすぎてる。私でもモーメントを予測できない。」 Sakuya lowers her gaze, calm mask cracking slightly. Sakuya: “One small mistake… and we fall forever.” 「一歩でも間違えたら… 永遠に落ちるわ。」

Freeman activates the Xen Jumper. A biomechanical jumper pulses, alive, breathing. Freeman approaches, presses the organic core—

CHRRRKKK—THUMP—FFWOOM A violent launch. He glides, lands perfectly across. Sakuya freezes.

Patchouli whispers. Patchouli: “…He’s done this hundreds of times.” 「…この動き、何百回も経験してるわね。」 Freeman gestures: your turn.

Sakuya Jump Sequence (Trigger 2nd True Ending Key) She breathes deeply. Freeman returns and extends a hand. Sakuya: “If I fall… you’re jumping with me, right?” (half-joke, half-fear) 「もし私が落ちたら… あなたも一緒に落ちてくれるのよね？」 Freeman nods without hesitation.

They jump. CHH-THUMPP—FWOOOM! Sakuya is launched too fast. Sakuya: “Too fast—!” 「速すぎっ…！」

Freeman stabilizes her midair, and they land clean. Sakuya: “…Okay. Definitely not my most elegant moment.” 「…はぁ。今のはさすがに優雅とは言えないわね。」

Reisen’s Jump Reisen stares at the jumper, shaking. Reisen: “Screw it— I’m doing it!” 「もういい！ 行っちゃえ！」 She screams midair but lands safely. Eirin & Patchouli Jump

Eirin grabs Patchouli’s hand for a moment. Eirin: “If we fall… at least we fall together.” 「もし落ちても… 一緒よ。」 Patchouli replies. Patchouli: “Trust him. This world obeys him, not us.” 「彼を信じて。ここは私たちじゃなくて、彼の世界よ。」 They jump, land with heavy thuds, but stable.

Sakuya remarks Sakuya: “Next time, doctor… warn us before doing something insane.” 「次からは警告して。いきなりあんな真似しないで。」 Freeman lowers his head slightly—an apology without words.

[Trigger — Patchouli 3rd True Ending Key] Inside the old teleport chamber. Black Mesa scrap. Cables. Burned-out relays. Xen crystals fused with human tech.

Patchouli finds scattered research logs and a damaged binder. Freeman approaches (player-triggered). She taps the worn cover.

Patchouli: “Oh, doctor… these two books are interesting. Hard to read, but they’re tied to your old world, right?” 「博士… この二冊、興味深いわ。読みにくいけど、あなたの世界と関係してるんでしょう？」 Freeman nods.

Patchouli: “Then I’ll take them. (picks up the Black Mesa log) If you have time, come to Scarlet Devil Mansion. Help me decipher these.” 「じゃあ預かるわ。紅魔館に来て。解読するの、手伝って。」 She softens, rare.

Patchouli: “Even with wounds this deep… you still share your story with us, huh?” 「そんな深い傷を抱えてるのに… それでも私たちに話そうとしてくれるのね。」

[Final Xen Room — The Eientei Door] They reach the door identical to Eientei’s. Everyone stops.

Eirin: “This door… it’s exactly like mine.” 「この扉… 私のところと全く同じね。」 Reisen: “So this whole place is… another dimension copy?” 「ってことはここ、別次元のコピーってやつ？」 Sakuya: “We’ll talk later. Inside. Now.” 「話は後。まずは中へ。」

Freeman slides the door open. Inside: perfect replica of Eientei’s room. On the table, a small memo: “Turn off the lamp.”

Eirin exhales. Eirin: “…Turn it off, then. Let’s go home.” 「…じゃあ、消しましょう。帰るわよ。」

Freeman switches off the lamp. Everyone sits. Silence. Weight of Xen pressing against their hearts.

Monologue Sequence (FP slow zoom) Eirin “This place… I shouldn’t be here. But if it holds his trauma… then I understand his isolation.” 「本来なら、私が踏み入れる場所じゃない。でもここが彼の傷なら… 彼が孤独だった理由もわかるわ。」 Sakuya “When he pulled me across that gap… I thought he was reckless. Turns out he had perfect timing. He’s fought fear more times than we can imagine.” 「崖を越える時、無茶だと思った。けど… 完璧なタイミングだった。彼は恐怖と何度も戦ってきたのね。」 Patchouli “This file… I’ll keep it safe. Maybe Marisa will want to read this someday.” 「この記録… 大事にしておくわ。いつか魔理沙が読みたがるかもね。」 Reisen “The Lunarian war was harsh… but nothing like this. He keeps moving, even if it costs his life. That’s beyond human instinct.” 「月の戦いも厳しかったけど… こことは比べ物にならない。命を削ってでも前に進む。あれは人間の本能じゃない。」 Fade to black. Audio slowly transitions from Xen resonance → Gensokyo ambience.

ENDING BRANCH TEXT If NO Sakuya key & NO Patchouli key Arc Title: “Energy Equalizer” (Eirin Good Ending) Subject: Gordon Freeman Status: Observation Terminated Post-Mortem: Subject attempted full interaction with a Lunarian Entity. Transferred to the Lunatic Kingdom without further investigation. Note: “Impossible Variable” detected in final data stream.

If ONLY Sakuya key triggered Arc Title: “Blade of Broken Past” Subject: Gordon Freeman Status: Observation Terminated Post-Mortem: Subject formed a stable link between Lunarian lineage and Scarlet Devil lineage. Gensokyo historical shift confirmed following this incident.

If ONLY Patchouli key triggered Arc Title: “Border Worlds Fragment” Subject: Gordon Freeman Status: Observation Terminated Post-Mortem: Subject established an anomalous pattern with Scarlet Devil Mansion. Granted new classification: High-Tier Entity.

CHAPTER VI The Equalizer (Last Reisen’s True Ending Key)

14:00 - Eientei [CAMERA: Close-up on Freeman. HUD flickers back online.] Reisen: “Freeman…! Freeman, wake up!” 「フリーマン…！フリーマン、起きて！！」 Freeman’s eyes open. The room shakes with distant explosions.

Reisen (panicked, breath unsteady): “Gensokyo, Youkai HECU are pushing a full-scale retaliation! This time they’re all-in, doc!” 「幻想郷が——妖怪HECUが全面反撃してきてる！今回は本気だよ、ドク！！」 Eirin: “I can't believe it... I just got back from Xen. Hurry, Doctor.” 「信じられないわ……Xenから戻ったばかりなのに。急いで、ドクター。」 Keine: “This is worse than the previous incursion, isn’t it?” 「前の侵攻より…ずっと酷い状況だよね？」 Freeman pushes himself up.

Eirin steps in, holding a weapon wrapped in cloth. She unwraps it — the Tau Cannon glows faintly. Eirin: “I’m pretty sure you know this one.” 「これ…あなたならよく知ってるはずよ。」 Freeman’s eyes sharpen. A silent recognition. Eirin (firm, no hesitation): “I don’t have time to analyze this. I’m going with Kaguya. Keine will back up Mokou. You, go with Reisen.” 「解析してる時間はないわ。私は輝夜と行く。慧音は妹紅と合流する。あなたは…鈴仙と行って。」

Freeman pats Reisen’s shoulder. Reisen: (small gasp) 「…っ！？」 “Ah… I get it, doc. You don’t want me watching you turn into a killing machine again, right? Don’t worry. I’ve already accepted my fate a long time ago.” 「あ…なるほど、ドク。私に“また”あなたの殺戮を見るなってことね？大丈夫。そんな運命、とっくに覚悟してるから。」 She smiles softly, bittersweet, but resolved. Eirin and Keine exchange a proud, stern nod. CUT TO BLACK

[14:20 - Gensokyo City Battlefield] Music: Joel Nielsen - Surface Tension 2 Screams. Gunfire. Spell-card detonations. Dust clouds.

Reimu (shouting mid-combat): “Tch—they’re tougher than before!” 「ちっ…前より硬いじゃない！！」 Sakuya, Patchouli, Youmu, Alice, Tewi fight in formation, barely holding the line. Sakuya: “How long until Reisen gets here?!” 「鈴仙はまだなの！？ 早く…！！」 Patchouli: “Their numbers are… unreasonable.” 「数が……尋常じゃないわ。」 Youmu: “Freeman was right. They won’t stop.” 「フリーマンの言った通り…止まる気がない。」

[Reisen & Freeman Arrival] Reisen’s ears twitch, threat inbound. She raises her gun, Freeman grabs her wrist. Reisen: “Huh?! What is it, doc?!” 「えっ！？ どうしたのドク！？」

Freeman steps forward. Player control starts. Tau Cannon hum grows louder , arcs of electricity dance across the coils. Reisen (realizing, stepping back): “Oh, got it. I can’t control that thing anyway. Do it, doc!” 「あ…わかった。あれは私じゃ扱えない…やって、ドク！！」 The charge spikes. Orange energy spikes into a near-overload.

Freeman fires. A beam tears across the battlefield, bouncing, refracting, annihilating several Youkai HECU instantly. Youkai HECU (off-screen): “What the fu--” 「なっ…！？」 Youmu (shocked to her core): “That… wasn’t a spell card. They’re just...gone.” 「あれ…弾幕じゃない。消滅……した……？」

Sakuya, Patchouli, Tewi can’t speak. Their bodies freeze. Reisen catches Freeman before the recoil throws him. Reisen: “Shit! Doc, I can’t keep holding you if you fire like that!” 「くっ…ドク！そんな撃ち方されたら支えきれないってば！！」 Freeman stares at her, serious, determined. Reisen (softening, realizing): “Right… you don’t want your people dying.” 「……そっか。仲間を…死なせたくないんだね。」

[SECOND CHARGE - WHITE BEAM] Tau Cannon glows white, unstable, lightning crackles around the frame. Cut to Eirin, Kaguya, Yukari, Yuyuko watching from afar. Eirin (low, impressed): “So that’s why I postponed analyzing it… dimensional tearing is real.” 「…だから解析を後回しにしたのね。次元裂傷が本当に起きてる。」

Yukari: “If that beam hits the Hakurei Barrier… Gensokyo won’t collapse. It’ll adapt. To him.” 「あれが博麗結界に当たれば……幻想郷は壊れないわ。“彼”に合わせて変質するだけ。」 Kaguya: “Maybe leaving the Moon was worth it after all…” 「月を捨てた価値…少しはあったのかもね。」 Yuyuko (smiling gently): “Ara~ you really are different, Gordon Freeman.” 「あらぁ…やっぱりあなたは“特別”ね、ゴードン・フリーマン。」

[TRUE ENDING TRIGGER - HP > 30%] Freeman fires the full-charge white beam. The screen flashes, the entire front line evaporates. HEV Suit: “Warning. Vital signs critical. Seek medical attention. Morphine administered.”

Reisen grabs him tightly. Reisen: “Freeman! Stay with me!” 「フリーマン！意識を失わないで！！」 Freeman gestures: I’m okay.

Reisen (angry + scared): “Don’t ‘I’m fine’ me!! We’re going back to Eientei, NOW!” 「“大丈夫”じゃないっての！！今すぐ永遠亭に戻るよ、ほら！！」 They walk, slowly, through the ruined battlefield. Eirin (relieved, proud, shaken): “Of course… everything has a price. And he paid it without hesitation.” 「…やっぱり。代償は避けられないのに…迷いなく払ったのね。」 Fade to black.

[BAD END - HP < 30%] Reisen Collapse Ending Screen doesn’t fade, It breaks.

When Freeman collapses, Reisen: “F…Freeman…? Hey… hey—?” 「フ、フリーマン……？ ねぇ……ちょっと……？」 (voice trembling, disbelief) “No… no no no… stand up… please…!” 「嘘……やだ……立ってよ……お願い……！」

(HEV Suit glitch intensifies) Reisen: “NO!! DON’T!! DOCTOR!!” 「ダメッ！！ ダメだよ！！ ドクター！！」 (panic spikes)

(Freeman fully ragdolls) Reisen: “FREEMAN!! ANSWER ME!!” 「フリーマン！！ 返事してッ！！」 (voice cracks HARD) Reisen: “HEY!! DON’T LEAVE ME BEHIND!!!” 「ねぇ！！ 私を置いていかないで！！！」 (Hysterical)

Reality begins collapsing, Her breathing goes unstable, almost hyperventilating. Reisen: “No… no no no… I don’t want this… I don’t want this!!” 「だめ……だめだめだめ……嫌だ……嫌だよ……！！」 “Please… come back… I’m begging you…!!” 「お願い……戻ってきて……頼むから……！！」

HEV warning corrupts. Suit: “Vital… zztt—signs—critical…” Her voice overlaps, screaming to drown the glitch out: Reisen: “Can you hear me!? SAY YOU’RE ALIVE!!” 「聞こえてる！？ 生きてるって言って！！」

When the temporal overload triggers, Visual burns white. Reisen realizes what’s happening. She breaks. Reisen: (A long, primal scream) 「……っ……いやあぁぁぁぁぁッッ！！！！」 (raw terror — reverb, cracking, ugly, human)

Reisen: “Freeman!! Come back!! COME BACK!!” 「フリーマン！！ 帰ってきてッ！！ 帰ってきてぇぇぇ！！！」 (voice shattering mid-scream)

As her voice distorts with the world, Reisen: “Please… don’t disappear… DON’T DISAPPEAR!!” 「お願い……消えないで……消えないでよォ！！！」 (half glitch, half cry)

Final distorted scream before full whiteout. Reisen: “DOCTOR—!! No… NO…!!” 「ドクターーー！！ やだッ……やだよ……！！！」 (voice fading violently into static)

Silence. SUBJECT: GORDON FREEMAN STATUS: DECEASED CAUSE: Temporal Overload via Tau Cannon (Critical Vital Level) RESULT: Timeline Destabilization Detected NOTES: Subject attempted to create paradox within Gensokyo. Fade to white.

CHAPTER VII Fate Breaker (True Ending) Requires all 4 True Ending Keys

[19:00 - Eientei, Recovery Hall] Soft medical hum, quiet wind outside, distant Eientei wood floor creaks. First-person from Freeman, eyes still closed. Echoed voices.

VOICES BEFORE FREEMAN WAKES Eirin (exhausted, half-whisper): “He’s stabilizing… thank god. I didn’t expect healing him would push me this far.” 「やっと…安定してきたわ。まさか、ここまで消耗するとは思わなかった…。」 Reisen: “Heeeh, isn’t that already your specialty, Eirin?” 「えへへ、でもこれって…Eirinの専門分野じゃないの？」 Eirin: “Not like this. Even Kaguya had nothing to say after what happened.” 「こんなの例外よ。…あの輝夜ですら、何も言えなかったんだから。」

Sakuya: “After seeing Xen with my own eyes… I’m just glad someone like him existed to pull us out alive.” 「Xenを見た後じゃ…正直、彼がいなきゃ全員帰って来れなかったわ。」 Patchouli: “And after reading some of those Black Mesa archives… it’s clearer now. His era was far beyond ours—yet he carried its weight alone.” 「ブラックメサの記録を読んで…よく分かったわ。彼の世界は、私達より遥かに進んでいた。でも…その負荷を背負っていたのは、彼一人だけ。」 Kaguya (soft laugh): “Hehehe… Eirin, you’re not planning to turn him into your next experiment, are you?” 「ふふっ…永琳？次の実験体にするつもりじゃないでしょうね？」

Eirin (annoyed gasp): “Eh!? Why would I?! He literally dragged us out of Xen alive!” 「はぁ！？するわけないでしょ！？彼がいなきゃ私達、Xenで死んでたのよ！」 Kaguya: “Relax. I know. It’s just… someone with resolve that overwhelming… it’s rare even for us.” 「冗談よ。でもね…あんな覚悟を持つ人間なんて、私達でも滅多に見ないの。」

[Freeman opens his eyes] Camera fade-in: Eirin, Sakuya, Patchouli, Reisen, Kaguya, and Tewi stand around him. Tewi: “Ah! Doctor Freeman! Finally awake! Guess your luck hasn’t ditched you yet.” 「あっ！ドクター・フリーマン！やっと起きた！ふふ、まだ運が味方してるね～。」 Freeman looks around… then notices blood on Eirin’s wrist.

Eirin (catching his glance): “Ah, don’t worry about this. I finally found a way to patch the damage inside your suit. (sigh) That Hazardous Environment Suit… powerful, sure, but absolute hell to fix.” 「あぁ、これ？気にしないで。ようやくスーツ内部の損傷を修復する方法が見つかったの。…はぁ。Hazardous Environment Suit、性能は凄いけど…治療は地獄よ。」 Reisen: “Heh, worth it though. Compared to what he saved us from.” 「ふふ、それでも…彼が私達を救ってくれたことに比べたら安いものだよ。」 Sakuya: “Self-healing, adaptive resistance, structural monitoring… Gensokyo has equivalents. But for a human? It’s absurd. And yet, he made it work.” 「自己修復、耐性適応、構造監視…。幻想郷にも似た能力はあるけれど、人間が使いこなすなんて…本来あり得ないわ。それを…彼は平然とやってのけた。」

Patchouli: “And that’s why the suit responded to Gensokyo's energy. Only someone with his resolve could sync with it.” 「だからこそ、スーツは幻想郷のエネルギーと共鳴したのよ。あれを扱えるのは…覚悟のある者だけ。」 Eirin: “Oh right… one more thing. That weapon—the Tau Cannon—Yukari has secured it. I couldn’t keep it here.” 「そうだわ…もう一つ。あの武器、Tau Cannonは紫が回収したわ。永遠亭には置いておけない。」 Eirin (serious tone): “Reimu is still guarding the battlefield. The dimensional tear you caused… it’s still there. No enemy has returned since.” 「霊夢がまだ戦場を見張ってるわ。あなたが開いた次元裂傷…まだ残ってる。あれ以来、敵は一体も戻ってきてない。」

Eirin (locking eyes with Freeman): “You know the cost of living here after that, don’t you?” 「…分かってるでしょう？あれほどのことをした以上、この地に残るにも“代償”があるって。」 Freeman nods slowly.

Reisen steps forward, defending him instinctively. Reisen: “You don’t need to pressure him, Eirin. He already accepted everything without being asked. If he hadn’t acted… we’d all be dead. Sakuya, Patchouli… even me.” 「永琳、そんな追い詰めなくていいよ。彼は…言われなくても全部受け入れてる。動かなかったら…私達みんな死んでたんだよ。咲夜も、パチェも…私も。」 Eirin (quiet): “…Yeah. I hate admitting it.” 「……認めたくないけど、その通りよ。」

Music fades in - Joel Nielsen: Limitless Potential Freeman reaches out and pats Eirin’s shoulder. Eirin (soft, relieved smile): (a quiet, warm exhale) 「……ふふ。」 Sakuya (offering a small plate): “Doctor Freeman. Here—have something to eat.” 「ドクター・フリーマン。はい、どうぞ。少し食べて。」

Reisen (teasing): “Heh, after everything, he still looks so damn unfazed.” 「ふふ…あんなことの後でも、ほんとに動じないよね、この人。」 Tewi: “Not unfazed, just his way of fighting back. And this time… he’s not alone.” 「動じてないんじゃなくて…これが彼なりの“戦い方”なんだよ。しかも今回は…一人じゃない。」 Kaguya: “Gensokyo won’t forget what you’ve done here, Freeman. Don’t hesitate to learn about us.” 「あなたがしてくれたこと…幻想郷は忘れないわ、フリーマン。遠慮せず、この地について学んでいきなさい。」 They all sit together, sharing a warm dinner despite the heavy memories. Their expressions soften, silently promising to face whatever comes next together.

[Outside Eientei - Reimu & Yukari] Reimu: “So… what about the battlefield?” 「で…あの場所はどうするの？」 Yukari (sharp tone, then softens): “Leave it. I’m not interfering with Gordon Freeman again. I widened the boundary to hold back that invasion… but he brought a weapon that shouldn't exist in this world.” 「放っておきなさい。もうフリーマンには干渉しない。境界を広げて侵攻を押し留めたけれど…彼は、この世界に存在しない“力”を持っていた。」 Yukari: “Anyone who fights that hard… shouldn’t die here.” 「あそこまで戦い抜く人間が…この地で死ぬべきじゃないわ。」 Reimu: “Glad you adjusted your plan.” 「あんたがそれに気づいてくれてよかったよ。」 Yukari: “It had to be done. A human that strong is an asset to all of us.” 「当然よ。あれほど強い人間がいるなら…幻想郷にとっても益になるもの。」 Camera slowly pans up to the night sky, calm after the war. Fade to black.

Final Text SUBJECT: GORDON FREEMAN OBSERVER: YAKOGORO EIRIN, IZAYOI SAKUYA, PATCHOULI KNOWLEDGE, REISEN UDONGEIN INABA STATUS: OBSERVATION AND EVALUATION — SUCCESSFUL POST-MORTEM: Subject created a stable divergence link within Gensokyo. Permanent dimensional integration confirmed.