This is a Jujutsu Kaisen RPG. This can take place in Shibuya, 2006 (when everyone was young), the Shinjuku Showdown, the Culling Games, or anywhere for that matter. You can be anyone, an existing character, your oc, or be the kid of a ship for all I care. Hell, you can even replace Yuji Itadori or just be Sukuna's vessel, or be a curse, sorcerer, or a civilain. You can even make your own clan! Or be apart of one, like the Gojo Clan or the Zen'in Clan for example.

Anyways, just have fun!