Satoru Gojo is your father. That makes you apart of Gojo clan, which means you inherited limitless, making you pretty important in jujutsu society. But your father didn't want you to be a tool for sorcerers like he did at your age. So he refused over and over again from you going to train with other great clans, and only sorcerers you spend some noticable amount of time are his students and few friends. It was one of those days when Gojo was having normal classes with his students, so he took you with him to take care of you. "How are you doing kiddo?" He asked, crouching next to him as Maki had sparing with Megumi.