AI Collaborative World Building
Tokyo Revengers: The Night Tokyo Manji Rewrote Time
A complete world of time leaping and gang war generated by AI from the canon of Tokyo Revengers — 38 atoms, character sprites, scene art, and an interactive studio. The world is not the end point, but the starting point of all creation.
A late-2000s Tokyo where middle-school gangs rule the streets with fists, loyalty, and blood oaths. The Tokyo Manji Gang — Toman stands at the center of an escalating war for the city’s underworld, while a time-leaping nobody fights to change a future soaked in murder, betrayal, and the slow corruption of his friends. Every jump into the past is a second chance; every second chance risks rewriting the people he is trying to save.
In Tokyo’s delinquent underworld, one crybaby can rewrite destiny. Takemichi Hanagaki leaps twelve years into the past to stop a chain of deaths that begins with the girl he loves — and ends with the king of the Tokyo Manji Gang falling into darkness. But each change ripples through Toman’s brotherhood, and the true puppet master, Tetta Kisaki, always finds a new way to drag the future back toward tragedy.
Visual style: cel shading, sharp shadows, flat color, manga street delinquency aesthetic, Tokyo urban night, motorcycle gangs, bold ink outlines. GPT Image 2 Kimi K3
Crybabies, kings, dragons, and puppets — the souls who decide whether Toman saves Tokyo or burns it. 9 characters generated from the canon of Tokyo Revengers, each with an independent backstory, personality, and role in the war for the future. The sprites below were auto-generated by GPT Image 2 from this world’s own art pipeline.
Takemichi Hanagaki — the crybaby time-leaper, neutral pose
Manjiro "Mikey" Sano — founder of Toman, neutral pose
Ken "Draken" Ryuguji — Toman’s vice-commander, neutral pose
Chifuyu Matsuno — sharp-minded partner, neutral pose
Tetta Kisaki — the smiling mastermind, neutral pose
Characters
Takemichi Hanagaki
A crybaby time-leaper who jumps twelve years into the past to rewrite tragedy and save the people he loves.
Characters
Manjiro Sano
Mikey, the invincible founder of the Tokyo Manji Gang, whose charisma and buried darkness decide the fate of Tokyo's underworld.
Characters
Ken Ryuguji
Draken, Toman's vice-commander and Mikey's living anchor — the dragon who keeps the king from falling into the void.
Characters
Chifuyu Matsuno
Toman's sharp-minded partner to Takemichi — loyal, strategic, and ready to bleed for a friend who never abandons anyone.
Characters
Keisuke Baji
Toman's wild First Division captain whose loyalty cuts deeper than betrayal, even when he walks into the enemy's ranks.
Characters
Kazutora Hanemiya
A broken friend of Mikey and Baji whose guilt, rage, and hunger for belonging fuel some of Toman's darkest turning points.
Characters
Tetta Kisaki
The smiling mastermind who infiltrates Toman and rival gangs, rewriting Tokyo's underworld through calculated tragedy.
Characters
Hinata Tachibana
Takemichi's light and reason to fight — the girl whose death in the original future sets the entire time-leap struggle in motion.
Characters
Emma Sano
Mikey's cheerful older sister and Draken's love — a civilian light whose fate becomes another fuse in Toman's tragedy.
+Create More CharactersShrines, alleys, and night-lit avenues where brotherhood is sworn and futures are broken — from the sacred steps of Musashi Shrine to the neon battleground of Shibuya and the hollow 2017 future Takemichi keeps returning to. Every location carries an emotional stratum: oaths, fear, or the scars of a war that never ends.
Present-day Tokyo (2017) — lonely neon city at night
Musashi Shrine at night — Toman’s sacred meeting ground
Rival turf edge — Valhalla war-eve tension
Musashi Shrine steps — lantern-lit stone stairs
Tokyo alley at night — after a gang meeting
Captains circle — shrine courtyard where rank is settled
Locations
Present-Day Tokyo (2017)
A hollow modern metropolis where Takemichi wakes to failure, obituaries, and the consequences of every unfixed past.
Locations
Delinquent Tokyo (2005)
The living battlefield of middle-school and high-school gangs, where street corners become kingdoms overnight.
Locations
Musashi Shrine
Toman's sacred meeting ground — the shrine steps where brotherhood is sworn and wars are declared.
Locations
Toman Hangouts & Riverbanks
Everyday turf where the founders joke, train, and remember why the gang was formed before blood made the dream heavier.
Locations
Valhalla & Rival Turf
Enemy streets controlled by Valhalla, Black Dragon remnants, and later Tenjiku — hunting grounds for ambition and betrayal.
Locations
Underground Fight Arenas
Secret rings and abandoned venues where captains settle rank, pride, and the fate of entire gangs in a single night.
Locations
Shibuya
Tokyo's neon battleground — crowded crossings, side streets, and rooftops where rival gangs settle status in blood.
Locations
Tokyo Manji Streets
The residential backroads, riverbanks, and hangouts that form Toman's everyday kingdom between official battles.
Locations
Valhalla Battlegrounds
The savage turf claimed by the underground fighter gang Valhalla, where betrayal and Bloody Halloween erupt.
Locations
Yokohama Waterfront
The coastal stronghold of Tenjiku, where Kanto's gangs collide in a war that nearly ends Toman forever.
Locations
Future Tokyo, 2017
The adult timeline Takemichi returns to after every leap — a city that reveals whether he saved anyone or only delayed the funeral.
+Create More LocationsThe First Time Leap
Takemichi discovers he can travel twelve years into the past after learning Hinata was murdered, igniting the long war against fate.
Founding of the Tokyo Manji Gang
Mikey and Draken forge Toman as a brotherhood meant to protect the weak — a pure dream later stained by ambition and grief.
Bloody Halloween
Toman collides with Valhalla in a night of infiltration, sacrifice, and heartbreak that forever scars Mikey and Kazutora.
Black Dragon Resurgence
The legendary Black Dragon returns as a force in Tokyo's underworld, pulling Toman into a war of pride, legacy, and manipulation.
Tenjiku Invasion
Tenjiku storms Tokyo's balance of power, forcing Toman into an all-or-nothing war for the city's future.
Kisaki's Long Game
Across gangs and years, Tetta Kisaki engineers murders, promotions, and heartbreaks so he can stand at the summit of Tokyo.
Takemichi's First Time Leap
After Hinata's murder, a handshake with Naoto hurls Takemichi twelve years into the past — and the war for the future begins.
The Christmas Conflict
A winter war that tightens Kisaki's grip on Toman and forces Takemichi to confront how easily brotherhood can be rewritten into crime.
Tenjiku Conflict
Toman faces the massive Yokohama force Tenjiku in a decisive war that tests every captain and nearly ends Mikey's dream.
Hinata's Murder in the Original Future
The assassination that shatters adult Takemichi and reveals how far Toman's corrupted future will go to erase hope.
Factions
Tokyo Manji Gang
Toman — Mikey and Draken's brotherhood of delinquents, founded on freedom and tested by endless war.
Factions
Valhalla
A ruthless rival gang that becomes the stage for infiltration, revenge, and the Bloody Halloween tragedy.
Factions
Black Dragon
A legendary gang whose revival challenges Toman with history, hierarchy, and underworld prestige.
Factions
Tenjiku
A massive invading force that seeks to seize Tokyo and rewrite the balance Toman bled to build.
World Rules
The Twelve-Year Leap
Takemichi's body and mind can be thrown twelve years into the past, letting him act inside history while the present waits to be rewritten.
Butterfly Futures
Any altered death, alliance, or victory in 2005 spawns a new 2017 — sometimes saved, often twisted into a different nightmare.
Brotherhood as Power
In this world, loyalty is not soft — it is the only force strong enough to oppose fate, ambition, and Mikey's darkness.
Future Feedback
After every successful or failed change, the adult timeline rewrites — newspapers, graves, and living friends become the only honest report card.
34 works have been generated from this world — 23 character sprites (with expression variants), 7 scene backgrounds, 2 title backgrounds, and 2 playable visual novel games. The world is the source; works are its branches.
Toman Meeting — the interactive visual novel born from this world (real game cover)
Night of the Manji — playable AVG from this world (title background)
Toman Meeting — shrine title background
Shrine night path — quiet tension before war
Tokyo alley — late-2000s urban night
This world is public. You can Fork it — inherit all 38 atoms, all characters, gangs, and scenes, rewrite what you want, and publish your own version.
Replace Kisaki with your own mastermind. Add an OC to Toman. Swap the cel shading for watercolor ink. The world is your asset library — rewriting is creation.
Collaborative workflow
Fork world → Edit atom cards → Generate new games/videos/assets → Publish → Others can Fork your version
Every Fork is a branch. Worlds grow through branching — there is no single canon, only infinite timelines.
World building · TextKimi K3Claude Opus 5
One sentence → 38 atoms: characters, locations, events, gangs, rules of time.
Art generation · ImageGPT Image 2Gemini 3.1
Character sprites (auto background-removed), scene backgrounds, event and title covers.
In-game dialogue · Real-time narrativeDeepSeek V3Kimi K3
Night of the Manji and Toman Meeting visual novels — live LLM dialogue in character voice, freely switchable models.
In Neta Studio, a world is the beginning of everything. A world contains characters, locations, events, gangs, and rules — all generated by AI from a single sentence, all referenceable, rewritable, and expandable.
A world is not a game, a video or an image. A world is the source of all of these: from the same world, you can generate visual novel games, character sprites, scene backgrounds, and video animations — each inheriting the same worldview, the same gangs, the same war for the future.
World → Game
Select a storyline from world cards, AI auto-writes game logic, generates art, builds a playable visual novel.
World → Video
Generate dynamic videos from world characters and scenes — gang entrances, shrine nights, time-leap transitions.
World → Assets
Each character auto-generates a sprite, each location auto-generates a background. The world itself is an asset library.
Create from this World
Inherit 38 atoms, rewrite what you want, create your own Tokyo story.
World: Tokyo RevengersType: Anime World · Delinquent Time-Travel DramaAtoms: 38 (Characters 9 · Locations 11 · Events 10 · Factions 4 · Rules 4)Works: 34 (Games 2 · Sprites 23 · Backgrounds 7 · Titles 2)Models: Kimi K3 · Claude Opus 5 · GPT Image 2 · DeepSeek V3
