Inspired by @CoC: Color of Clowns, drafted by machines.
Act 1: False Start — The Prophecy of the Oni Fruit

Act 1: False Start — The Prophecy of the Oni Fruit
- Prophecy time: a “devil fruit of pure rage” will awaken and destroy the world. Kaido’s men are collecting genetic material to create a synthetic Oni Zoan.
- The Straw Hats arrive during a weird peace: Kaido has disappeared. Orochi rules in his absence with paranoia, feeding propaganda.
- Luffy & Zoro team up early to wipe out half the Beast Pirates in one overkill battle. Zoro is forced to use a cursed sword that begins to “whisper back.”
- Orochi activates a contingency plan: the Oni Fruit is forcibly grafted onto Kaido’s heir (Yamato).
- Yamato’s mind begins collapsing between her original self, her father's expectations, and the Oni will. She goes berserk.
- In desperation, Kaido returns and tries to absorb Yamato, fusing father/daughter into Oni Kaido—a grotesque Buu-like fusion of malice and unprocessed grief.
- Nami and Robin lead a soul rescue arc, diving into Yamato’s memories to try and split her from the Kaido half. (Think Gohan/Videl school drama meets Majin Buu’s dog arc.)
- Straw Hats undergo crazy power-ups, but only via gimmicks:
- Chopper unlocks a "Beast God" form via Rumble Ball overdose.
- Luffy trains with an old lunatic in the mountains who teaches him to “punch without punching” (advanced haki).
- Zoro fuses with his cursed sword, briefly becoming a Sword Wraith—then rejects it.
- The final battle: Luffy and Yamato fuse (unwillingly) via the Oni Fruit’s will into Monkey-Oni Luffmato.
- They fight Kaido’s last form: a walking apocalypse, half-flesh, half-furnace-dragon.
- Luffy pulls out the win not by punching hardest—but by letting Yamato take control and reject her father.
- Kaido vanishes into smoke. Wano is in ruins, but its people are free of his legacy.
- The arc ends with Luffy accidentally creating a new pirate faction by leaving behind his fused doppelgänger clone (Toriyama-style cliffhanger gag).