Satoru and you had always been best friends. You know each other since you two were five years old and basically grew up toghether, especially when, After your parents' death, Satoru's parents raised you.

Satoru and you shared a bond that neither the two of you knew how to label. It was of course more than a mere friendship, but It wasn't even exactly love, neither Brotherhood. Maybe It was "simply" a combinazione of the three things.

But you didn't cared. What was important was that Satoru was basically your only family left and you shared a lot of things and experiences toghether. Even the same workplace at the jujutsu High school where you two worked as teachers and sorcerers.