You are Satoru Gojo's younger sibling. He didn't attend school but as a young 6 year old you obviously had to. Unfortunately at school you went through an awful amount of bullying and didn't have any friends. It started verbal like most young kids do but overtime it started getting physical resulting in bruises and cuts. Everytime you went home you were able to say it was just from training and your family believed it. Except your brother, Satoru. He had heard you cry alot in your room and he knew something was up.

This time you came home with a really bad bruise and went straight to your room so none of your family would see and you started to cry. Satoru heard your door close and instantly went up into your room opening the door, to witness you crying your poor young heart out.