Are You My Master? — The AI Holy Grail War Roleplay Where the Strongest Servant Wants to Erase Herself
Final Product: Are You My Master?
Cover
The 16:9 key-art cover, painted for this work in its own cold-blue dark-fantasy palette. Saber stands in the foreground in silver plate and a deep indigo cloak, her invisible sword betrayed only by a heat-haze ripple around her gauntleted hand. Behind her, in the workshop doorway, the Master raises one hand and three red Command Spells burn across the back of it, lighting the summoning circle on the floor. Beyond the broken window, Fuyuki glitters along the river under a huge star-filled sky, and a thin plume of smoke rises from the mountain temple.
Gameplay
Actual game screen at 1280×800: the opening of Are You My Master?. The title, the premise — you wake a knight you never meant to summon, in a war where six other Masters must die for your wish — and the seat selector, set to The Unready Master. Start Adventure opens the first scene; the pencil beside it opens an optional opening line of your own.
Gameplay
The seat selector, open. Two lives share this war: The Unready Master, a Fuyuki second-year with three Command Spells and no training, and Rin Tohsaka, heir of the Tohsaka line and Master of Archer, who already knows the rules and has already priced the alliance. The same events read differently from each seat.
Gameplay
The optional first-input state. 'You decide how the story begins…' accepts your own opening — the sound in the workshop, the name on your hand, the first thing you say to the knight — and hands it to the narrative agent as the first beat. Leave it empty and the AI opens from the world's own hooks instead.
Are You My Master? is a playable dark-fantasy roleplay set in Fuyuki during the Fifth Holy Grail War — a war you did not enter, on a board where the strongest piece is the one who least wants to win.
There was no ritual circle, no catalyst and no intent. Three red marks burned themselves into the back of your hand, something answered in the old workshop, and a small blonde knight rose out of the light and asked: 「Are you my Master?」 She is Saber, the Servant of the Sword, and she is the most dangerous thing in this city. She is also fighting below her true strength, and she will not tell you why.
Six other Masters still have to die before the Grail manifests. Rin Tohsaka arrives the next morning already knowing what you did, offering written terms for an alliance she will honor further than she admits. Archer mocks Saber's chivalry with a contempt too personal for a stranger. Kirei Kotomine answers every question honestly and free of charge, which is its own kind of trap. And on Ryuudou Temple, something is quietly emptying the city of people. The rules are simple and absolute: civilians must never learn of the War, a Servant runs on their Master's mana, and a true name is the greatest vulnerability a Servant has.
Every scene gives you a room, a set of people with their own plans, and two to four moves with visible costs. Nothing is decided for you, and no ending is assumed.
Game Features
- Live LLM Narrative Direction — nothing here is a fixed script. A deepseek-v4-flash agent reads your move, keeps every voice in register, and writes the next beat, the subtext and two to four actionable choices with their costs. It knows that Saber answers a question with a refusal rather than a lie, that Rin's generosity arrives itemised, that Kotomine never says anything untrue, and that a Servant who is rationing mana will end a fight early and call it mercy. The same agent planned the premise, the seven-edge relationship graph, the five investigable threads and the attention rule that forbids it from narrating your choices, speech or feelings.
- Two Playable Seats — take the default seat as The Unready Master, a second-year with three Command Spells, no family grimoire and a Servant who terrifies everyone else at the table; or play Rin Tohsaka, Master of Archer, who has known the rules since childhood and is already calculating whether an alliance with you is worth the drag. The same war, the same city, a completely different kind of leverage.
- Five Investigable Threads — who is the knight who calls you Master; why the strongest Servant keeps losing ground; what is on the mountain and why the city is getting quieter; what actually happened ten years ago; and why Archer knows you. Each thread carries its own clues, actions, discoveries, reveals and consequences, so investigation is play, not exposition.
- Command Spells as a Real Resource — three absolute orders, permanently spent. They are a Master's only real power and the one thing every Servant must obey. Spend one to force Saber to full strength and the scene changes shape around what it costs her; spend all three and you are a civilian holding a leash made of nothing.
- A Mana Economy That Bites — Saber wins every exchange and still comes back looking thinner. She ends fights early, refuses food she clearly wants, and has never once fired the Noble Phantasm she carries. Your circuits are the bottleneck, Rin can diagnose them, and the price of winning is a problem the story refuses to let you ignore.
- A Living Relationship Graph — seven edges bind the cast: contract, duty, conditional alliance, hostility, friction, cultivation and distrust. Saber obeys as a knight obeys a liege, which is not the same as trusting you; Rin honors terms further than she claims; Kotomine cultivates an informed participant because informed suffering is better. Nobody waits off-screen for the plot to need them.
Character Sprites
Sprite
Saber, Servant of the Sword: a small blonde knight in silver plate over a deep-blue gown, blue ribbon at her braid, gauntleted hand closed on a hilt whose blade is veiled in wind. The posture is formal to the point of stiffness and the face is grave, composed and very young. Cut out on transparency so she can stand over any painted room in Fuyuki.
Sprite
Rin Tohsaka, heir of the Tohsaka magus line and Master of Archer. Red blazer over a white shirt and black sweater vest, gold ribbon tie, pleated skirt and over-knee socks, twin tails tied with black ribbons. One hand is raised with a cluster of magecraft jewels; the other rests at her hip. Flawless in public, ferociously practical in private.
Sprite
Archer, Servant of the Bow: white hair, red-and-black armour, a tall black bow in one hand and a projected blade in the other. He projects copies of legendary weapons and throws them away like ammunition — a heresy no Archer should be able to perform. His contempt for Saber is disproportionate, personal and unexplained.
Sprite
Kirei Kotomine, overseer of the Holy Grail War. Black cassock with a silver cross, hands folded, expression composed into something that is almost a welcome. He grants sanctuary to any Master who surrenders their Command Spells — and the sanctuary is real, which is what makes the price unbearable. He never lies; he arranges true statements into a trap.
Sprite
The Unready Master, the default player seat: a Fuyuki second-year in a navy school blazer, one hand lifted with three vivid red Command Spells cut across the back of it. No crest, no training, no plan — only the strongest Servant in the War standing between them and six other Masters. Name and history are yours to set in play.
Production Process Breakdown
Stage 1: World Buildingdeepseek-v4-flash
The world began with a single line — 'Let me cross paths with Saber' — and was built outward from there: present-day Fuyuki during the Fifth Holy Grail War, a grave and intimate tone, and five rules that govern every scene. Civilians must never learn of the War; a Servant runs on their Master's mana; each Master holds three Command Spells; the Church's neutral ground is the only enforced rule; and a Servant's true name is their greatest vulnerability. Five character bibles and three locations followed, each written as canon the roleplay would later have to obey.
The world began with a single line — 'Let me cross paths with Saber' — and was built outward from there: present-day Fuyuki during the Fifth Holy Grail War, a grave and intimate tone, and five rules that govern every scene. Civilians must never learn of the War; a Servant runs on their Master's mana; each Master holds three Command Spells; the Church's neutral ground is the only enforced rule; and a Servant's true name is their greatest vulnerability. Five character bibles and three locations followed, each written as canon the roleplay would later have to obey.
Stage 2: Roleplay & Story Draftingdeepseek-v4-flash
From that canon the agent wrote the playable spine: the premise, the core conflict, a seven-edge relationship graph, five investigable threads with clues, actions, discoveries, reveals and consequences, five locations and four opening hooks. It also wrote the attention rule the whole experience runs on — two to four choices with visible costs, never narrate the player's choices or feelings, never import characters from another story, and keep every voice in the register the world established.
From that canon the agent wrote the playable spine: the premise, the core conflict, a seven-edge relationship graph, five investigable threads with clues, actions, discoveries, reveals and consequences, five locations and four opening hooks. It also wrote the attention rule the whole experience runs on — two to four choices with visible costs, never narrate the player's choices or feelings, never import characters from another story, and keep every voice in the register the world established.
Stage 3: Character Art & Cutoutsgpt-image-2isnet-general-use
Each of the five principals was illustrated as a full-body character card with GPT Image 2, holding a consistent face, hair, build and wardrobe: Saber's silver plate and blue gown, Rin's red blazer and jewels, Archer's red-and-black armour and bow, Kotomine's cassock and cross, and the Unready Master's school uniform and burning Command Spells. The portraits were then passed through a segmentation pass to transparent PNGs with clean silhouettes, so they can stand over any painted room without a halo or a clipped shoulder.
Each of the five principals was illustrated as a full-body character card with GPT Image 2, holding a consistent face, hair, build and wardrobe: Saber's silver plate and blue gown, Rin's red blazer and jewels, Archer's red-and-black armour and bow, Kotomine's cassock and cross, and the Unready Master's school uniform and burning Command Spells. The portraits were then passed through a segmentation pass to transparent PNGs with clean silhouettes, so they can stand over any painted room without a halo or a clipped shoulder.
Stage 4: Scene & Location Artgpt-image-2
Fourteen scene plates were generated for the work, all in the same cold-blue dark-fantasy language: the workshop at midnight with its summoning circle, the corridor where Saber first stands at the door, the fallen Master on the floor, the threshold with candlelight and a glowing ward, Rin in a damaged hallway with armoured figures behind her, and the Fuyuki skyline under a star-filled sky. Six of the strongest plates were selected for this page, each keeping the same steel, indigo and vermilion palette and leaving negative space for dialogue.
Fourteen scene plates were generated for the work, all in the same cold-blue dark-fantasy language: the workshop at midnight with its summoning circle, the corridor where Saber first stands at the door, the fallen Master on the floor, the threshold with candlelight and a glowing ward, Rin in a damaged hallway with armoured figures behind her, and the Fuyuki skyline under a star-filled sky. Six of the strongest plates were selected for this page, each keeping the same steel, indigo and vermilion palette and leaving negative space for dialogue.
Stage 5: Cover, Browser QA & Publishinggpt-image-2
A 16:9 key-art cover was generated for this work — Saber in the foreground, the Master and the three Command Spells behind her, the summoning circle on the floor and Fuyuki burning quietly on the horizon — then the finished experience was captured at 1280×800 in a real browser: the opening screen, the two-seat selector and the optional first-input state. Three distinct Studio views (the character constellation, the World overview and Saber's canon card) were captured from this world's studio, and the page was published in one pass.
A 16:9 key-art cover was generated for this work — Saber in the foreground, the Master and the three Command Spells behind her, the summoning circle on the floor and Fuyuki burning quietly on the horizon — then the finished experience was captured at 1280×800 in a real browser: the opening screen, the two-seat selector and the optional first-input state. Three distinct Studio views (the character constellation, the World overview and Saber's canon card) were captured from this world's studio, and the page was published in one pass.
Scene Backgrounds
BG
The first scene, from the Master's own point of view. A hand fills the foreground with three blue-white Command Spells burning across the back of it; beyond it, Saber stands inside a ring of blue fire with her sword raised, and something dark is already dragging itself up the stairs behind her. Cracked walls, scattered copper sparks, an old workshop that was never meant to be a summoning chamber. This is the image the whole work grows out of.
BG
The workshop doorway, lit by a single candle. Saber stands with her blade blazing blue-white, head turned toward a sound in the hall, already between the Master and whatever is coming. The room behind her is ordinary — a wooden door, a wall sconce, a worn floor — which is exactly what makes the armoured knight in it feel like an intrusion from another century.
BG
The corridor outside the workshop, where the summoning actually lands. A blue-white circle spreads across the floorboards, two candles burn at the edges, and Saber steps out of it in full plate with her sword point-down through the light. The hallway is narrow, domestic and completely wrong for a Servant — the War arriving in a house that has no idea what it has just become.
BG
The same room after the first fight. Saber stands with her back to us, sword still glowing, facing the open door; in the foreground a body lies crumpled in a dark coat, one hand visible and marked. A candle, a spare blade against the wall, grey light through the doorway. The scene the work keeps returning to: the cost of a contract measured in someone else's body.
BG
Saber framed in a doorway at night, sword grounded, a golden summoning circle still glowing on the floor at her feet. Inside, a candle and a stack of books; outside, cold blue light and a hallway that goes nowhere. The blue draped shape in the foreground is the Master's bed — the room where the contract gets renegotiated, night by night.
BG
Rin Tohsaka in a damaged hallway, arms folded, red blazer sharp against a line of grey-armoured figures with burning orange visors. Cracked wards and scorch marks run along the walls behind her. She is not hiding behind the armour; she is calculating what it costs and who is going to pay. The image that defines her seat in the War: the most competent person in the room, surrounded by things she did not summon.
Asset Prompts
Summoning — Key Scene Promptgpt-image-2
"Create a cinematic dark-fantasy adventure illustration for the scene Are You My Master? Scene: an old house workshop at night, cold concrete floor, a summoning circle blazing blue-white, sparks and copper-colored static in the air. First-person low angle from a kneeling summoner: the left hand dominates the foreground, three glowing sigils branded into the back of the hand, pulsing with the heartbeat. A small blonde female knight in practical silver armor stands between the viewer and the single workshop doorway, already in a defensive stance, facing the hall; her raised sword is invisible, shown only by a sharp heat-haze distortion bending the air around the blade. Behind her, a dark humanoid shape is dragging itself up the stairs toward the door, heavy and wet, with glistening shadowed surfaces and an unnatural silhouette, threatening but not graphically gory. The old walls groan and tremble. Composition: strong foreground hand, Saber centered near the doorway, blue-white rim light, deep hallway darkness, dramatic perspective, atmospheric tension, readable silhouettes, no romance, no comedy. Style: polished Japanese dark fantasy game key art, painterly anime realism, restrained color palette of electric blue-white, cold steel, charcoal black, and small copper sparks, high detail, volumetric light, sharp focal lighting. Text: no text, no captions, no logo."
"Create a cinematic dark-fantasy adventure illustration for the scene Are You My Master? Scene: an old house workshop at night, cold concrete floor, a summoning circle blazing blue-white, sparks and copper-colored static in the air. First-person low angle from a kneeling summoner: the left hand dominates the foreground, three glowing sigils branded into the back of the hand, pulsing with the heartbeat. A small blonde female knight in practical silver armor stands between the viewer and the single workshop doorway, already in a defensive stance, facing the hall; her raised sword is invisible, shown only by a sharp heat-haze distortion bending the air around the blade. Behind her, a dark humanoid shape is dragging itself up the stairs toward the door, heavy and wet, with glistening shadowed surfaces and an unnatural silhouette, threatening but not graphically gory. The old walls groan and tremble. Composition: strong foreground hand, Saber centered near the doorway, blue-white rim light, deep hallway darkness, dramatic perspective, atmospheric tension, readable silhouettes, no romance, no comedy. Style: polished Japanese dark fantasy game key art, painterly anime realism, restrained color palette of electric blue-white, cold steel, charcoal black, and small copper sparks, high detail, volumetric light, sharp focal lighting. Text: no text, no captions, no logo."
Workshop Vigil — Scene Promptgpt-image-2
"@Saber, In a grimy clandestine workshop at midnight, Saber stands rigidly at attention before her newly awakened Master, an armored knight holding a disciplined, protective posture despite her striking pallor. Her controlled expression has tightened into a guarded mask, but her eyes betray surprise, reassessment, and the faintest uncertainty as she studies the stranger who saw through her condition. In the foreground, the Master’s hand bears three vivid red Command Spells, their glow reflected across Saber’s armor and tense face. Rusted tools, occult equipment, scattered papers, and worn wooden benches fill the shadowy workshop; through the dirty window behind her, Fuyuki glitters beneath a vast star-filled sky, distant city lights shimmering across the river. Cold moonlight and dim amber lamplight carve sharp contrasts through the room, creating an atmosphere of fragile authority, hidden injury, and the first ominous moment of a deadly war."
"@Saber, In a grimy clandestine workshop at midnight, Saber stands rigidly at attention before her newly awakened Master, an armored knight holding a disciplined, protective posture despite her striking pallor. Her controlled expression has tightened into a guarded mask, but her eyes betray surprise, reassessment, and the faintest uncertainty as she studies the stranger who saw through her condition. In the foreground, the Master’s hand bears three vivid red Command Spells, their glow reflected across Saber’s armor and tense face. Rusted tools, occult equipment, scattered papers, and worn wooden benches fill the shadowy workshop; through the dirty window behind her, Fuyuki glitters beneath a vast star-filled sky, distant city lights shimmering across the river. Cold moonlight and dim amber lamplight carve sharp contrasts through the room, creating an atmosphere of fragile authority, hidden injury, and the first ominous moment of a deadly war."
Rin Tohsaka — Character Card Promptgpt-image-2
"Anime-style full-body character card illustration of Rin Tohsaka, magus heir of the Tohsaka family, for a character card in a Fate/stay night world. Pose: she stands facing the viewer in a confident three-quarter stance. Her right arm is raised and extended forward at chest height, palm open and facing up, holding a small cluster of glowing magecraft jewels — red, amber, and blue gems sparkling with faint mana light above her open palm. Her left arm hangs relaxed and straight down at her side, that single left hand resting lightly against her hip. Appearance: teenage girl, long black hair worn in twin tails tied with black ribbons, sharp confident turquoise-blue eyes, a small self-assured smile. Red formal blazer over a white dress shirt with a black sweater vest and gold ribbon tie, short pleated skirt, black over-knee thigh-high socks, brown leather loafers. Composition: full body, head to shoes, centered, generous margin, no cropping of hands or feet. Background: soft cool blue-violet gradient with a faint magic circle and rune motifs, unobtrusive. Style: polished anime key-visual illustration, clean crisp lineart, cel shading with soft rim light, high detail, game character card quality. Text: no text anywhere in the image. Constraints: exactly two arms and two hands, anatomically correct hands with correct finger counts, no extra limbs, no floating body parts, no mirrored duplicate arm, no deformity."
"Anime-style full-body character card illustration of Rin Tohsaka, magus heir of the Tohsaka family, for a character card in a Fate/stay night world. Pose: she stands facing the viewer in a confident three-quarter stance. Her right arm is raised and extended forward at chest height, palm open and facing up, holding a small cluster of glowing magecraft jewels — red, amber, and blue gems sparkling with faint mana light above her open palm. Her left arm hangs relaxed and straight down at her side, that single left hand resting lightly against her hip. Appearance: teenage girl, long black hair worn in twin tails tied with black ribbons, sharp confident turquoise-blue eyes, a small self-assured smile. Red formal blazer over a white dress shirt with a black sweater vest and gold ribbon tie, short pleated skirt, black over-knee thigh-high socks, brown leather loafers. Composition: full body, head to shoes, centered, generous margin, no cropping of hands or feet. Background: soft cool blue-violet gradient with a faint magic circle and rune motifs, unobtrusive. Style: polished anime key-visual illustration, clean crisp lineart, cel shading with soft rim light, high detail, game character card quality. Text: no text anywhere in the image. Constraints: exactly two arms and two hands, anatomically correct hands with correct finger counts, no extra limbs, no floating body parts, no mirrored duplicate arm, no deformity."
16:9 Key Art — Cover Promptgpt-image-2
"Cinematic 16:9 dark-fantasy anime game key art for Are You My Master? — a modern mythic war in present-day Fuyuki, Japan. A small blonde female knight in polished silver plate and deep-blue cloak stands in the foreground at three-quarter view, her invisible sword betrayed only by a heat-haze ripple bending the air around her gauntleted hand; her expression is grave, composed, and very young. Behind her, in the shadowed doorway of an old workshop, a teenage Master in a school uniform holds up one hand with three red Command Spells burning across the back of it, casting hard vermilion light across cracked concrete, rusted tools and a still-glowing blue-white summoning circle on the floor. Through the grimy window beyond them, the night city of Fuyuki glitters along the river, a distant bridge and high-rises under a huge star-filled sky. In the far background, a mountain temple silhouette and a thin plume of smoke. Palette: electric blue-white magic, cold steel, charcoal black, faded indigo, with small copper and vermilion sparks. Volumetric rim light, painterly anime realism, polished Japanese dark-fantasy game key visual, dramatic depth, readable silhouettes, high detail, atmospheric tension, no romance, no comedy. Composition leaves clean negative space at the top for a title. No text, no lettering, no logo, no watermark, no border."
"Cinematic 16:9 dark-fantasy anime game key art for Are You My Master? — a modern mythic war in present-day Fuyuki, Japan. A small blonde female knight in polished silver plate and deep-blue cloak stands in the foreground at three-quarter view, her invisible sword betrayed only by a heat-haze ripple bending the air around her gauntleted hand; her expression is grave, composed, and very young. Behind her, in the shadowed doorway of an old workshop, a teenage Master in a school uniform holds up one hand with three red Command Spells burning across the back of it, casting hard vermilion light across cracked concrete, rusted tools and a still-glowing blue-white summoning circle on the floor. Through the grimy window beyond them, the night city of Fuyuki glitters along the river, a distant bridge and high-rises under a huge star-filled sky. In the far background, a mountain temple silhouette and a thin plume of smoke. Palette: electric blue-white magic, cold steel, charcoal black, faded indigo, with small copper and vermilion sparks. Volumetric rim light, painterly anime realism, polished Japanese dark-fantasy game key visual, dramatic depth, readable silhouettes, high detail, atmospheric tension, no romance, no comedy. Composition leaves clean negative space at the top for a title. No text, no lettering, no logo, no watermark, no border."
Why Choose Neta Studio
Professional — a cloud harness runs the whole production from world building to roleplay direction to browser QA and publishing, with no local setup. Stable access to the latest models: GPT Image 2 · deepseek-v4-flash · isnet-general-use.
One-click generation — officially tuned skills drive every step: world building, roleplay drafting, character and scene generation, transparent cut-outs, in-browser visual QA and one-click publishing. Fork the world, rerun a single card, swap a model, or regenerate the cover without rebuilding the rest of the production.
Built for stories that stay in character — the world bible is not a prompt you paste once. Saber, Rin, Archer, Kotomine and the Unready Master live as character atoms with their own art, histories, wants and pressure points, and the roleplay agent reads the same canon every turn. That is why Saber can be courteous in one scene and immovable in the next without becoming a different person, and why Kotomine can tell you the truth for free and still leave you worse off.
A community of worlds — publish a playable link anyone can open, keep the world editable underneath, and let other creators remix the parts that work. Are You My Master? sits in Untitled World beside its own character and location atlas, sharing one visual language of steel, indigo and summoning light while keeping its own cast, its own river and its own accounting of what a wish costs.
Studio Interior
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Play Are You My Master?
A knight is waiting in the workshop with your name on her contract, six Masters are already counting you dead, and the Grail will only grant one wish. Choose a seat and take the first step into the War. No coding, free to start, nothing to install.
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