Sukuna did not merely occupy Megumi’s physical form; he engineered a clinical campaign to destroy his ego. The King of Curses knew that unlike Yuji Itadori, who acted as an impenetrable natural cage, Megumi possessed high cursed energy potential that could theoretically resist him if given a focal point of resolve. To eliminate that threat, Sukuna subjected Megumi’s body to The Bath ritual, a concentrated sludge of liquified curses arranged by Kenjaku and Uraume designed to drown the host’s human consciousness in pure malevolence.
The psychological coup de grâce followed shortly thereafter. Sukuna tracked down Megumi’s sister, Tsumiki Fushiguro, whose body had been hijacked by the ancient incarnated sorcerer Yorozu. By executing Yorozu using the Ten Shadows Technique rather than his own innate slashing attacks, Sukuna forced Megumi’s hands to murder his only remaining family member. The visual framing in Chapter 219 showed Megumi’s spiritual form sinking completely into pitch-black waters, curled inward, eyes devoid of light.
