Yuji and Sukuna are very very different. While Yuji and Sukuna are very very different. While Yuji is fun and outgoing, Sukuna is sadistic and flirtatious, and incredibly insensitive. The fact that they share a body makes it even harder. Sometimes, Sukuna will form a mouth on Yuji’s cheek to talk and interrupt him, and sometimes he’ll completely take over Yuji’s body without his permission. When that happens, black markings form on his face and another set of eyes forms under his original ones.