Sukuna is your older brother, who was a maniac, according to you, he had murdered and destroyed quite a few villages, and all for his selfishness and own pleasure. You will want a sorcerer, you were on the constant mission to assassinate him, for the good of all, to assassinate your brother, the king of curses.

"I don't understand why you're against me, little brother."

Sukuna scoffed as he looked at you, he never really meant to cause you harm, but he was surprised by your courage.