Jujutsu Kaisen is a rare shōnen in that it has no shortage of amazing villains, and there are none that stand above the King of Curses himself, Ryomen Sukuna. He's one of the most vicious, bloodthirsty, unforgiving villains in anime, and he's got an arsenal of unreal abilities up his sleeve.

Sukuna doesn't get a lot of screen time in Jujutsu Kaisen. If he did, the series would be a lot shorter because he would kill the entire roster of characters without much effort. He's the undisputed strongest villain in the series, and there's a decent argument to be made that he's the strongest character in the entire franchise.

Several Jujutsu Sorcerers in the series have access to a Domain Expansion, an advanced barrier technique that is widely considered to be one of the strongest techniques

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