Aside from Yuji Itadori, the character who has suffered the worst fate in Jujutsu Kaisen is Megumi Fushiguro. He has been a victim of some of the worst events that have taken place in the storyline of Jujutsu Kaisen. And now he is trapped in his own body with Sukuna having total control over it.

Megumi Fushiguro

From fighting his father, Toji Fushiguro, in the Shibuya Incident arc without knowing who he actually was, to killing his sister while Sukuna was in control of his body. Megumi has suffered a lot and because of his suffering, it has become a popular belief that Megumi Fushiguro might become evil by the end of the series.

There is also a high chance that the ultimate villain of Jujutsu Kaisen is Megumi rather than the King of the Curses. This hypothesis is also confirmed by Gege Akutami who might have foreshadowed Megumi’s...