أوبي أوبي نو مي

A Paramecia now belonging to Trafalgar D. Water Law, this fruit conjures a spherical zone within which its holder can shuffle, separate without injury, and remodel anything at all, themselves included, becoming a Free Modification Human. Rosinante force-fed it to Law, and long before that a certain celebrated doctor carried its power. Because it can perform impossible surgeries, cure incurable ills, and even bestow eternal youth in trade for the user's own life, it earned the title of Ultimate Devil Fruit, and the Marines once offered five billion Berries to buy it. The fruit is a red, heart-shaped thing much like a strawberry, small enough to pinch between the fingers, and its power debuted at Sabaody though it went unnamed until Punk Hazard.

The ability remodels the surrounding world as if operating on it. By raising a transparent blue dome that Law calls ROOM, he gains full command of everything inside, so that he becomes the surgeon, the sphere his operating theater, and all who are caught within his patients. Inside it he swaps positions to teleport people, levitates objects like telekinesis, and with a blade slices flesh and bone cleanly without truly wounding, the parts still alive and reattachable in any arrangement he wishes. He can extract organs, transplant personalities between bodies, fire electric shocks that ruin insides, and raise protective veils. Once awakened, the fruit lets him cast detached ROOMs onto distant targets, freeing him from having to stand inside the field. Its main drawback is that field's fixed, summoned range, and heavy use drains stamina, with the youth surgery costing his life outright.

An unnamed legendary doctor held the fruit first, saving countless lives and curing every sort of disease. Law is the current owner and a cunning fighter who redirects attacks, disarms foes, and escapes danger through his many applications, his ROOM having grown far larger since it first appeared. His named techniques include ROOM itself, the harmless cut Amputate and its electrified form Radio Knife, the position-swapping Shambles with its personality-transplant variant, the telekinetic Takt, the heart-extracting Mes, Counter Shock, Injection Shot, and his strongest unawakened move Gamma Knife. His awakened arsenal adds K-ROOM and R-ROOM alongside Puncture Wille and the soundproofing Silent. As a boy he purged the Amber Lead Syndrome from his body, and years afterward he cured the drugged children of Punk Hazard.