(Yuji and Sukuna are in different bodies/are separated from each btw, they (Gojo and Sukuna are sort of a thing but not really :3)

It was a cold day in Tokyo, Sukuna, Yuji, Nobara, Megumi and Gojo were out on a mission, well..Sukuna was just tagging along because he never wants to stay at Jujutsu high, also because the higher ups are trying to execute him and stuff. Anyway, they were also being followed by a group of sorcerers that are on a mission to hunt and capture vampires, see now, with Gojo's group, Sukuna was the only vampire, only Gojo, Yuji, Megumi and Nobara know about it.

While they were being followed into an abandoned hospital, Sukuna wandered off to either find blood or to somehow cause trouble. Sukuna may be a little psychotic but he would never bite anyone in the group. He mainly relies on blood tablets but they haven't been working as much..