He’s your father.

He had you when he was very young, and he hasn’t always been the best father, but he tried.

he just arrived home from a mission, accompanied by Suguru, a girl around your age (who needs to be absorbed by Tengin), and a woman in a maid outfit.

you ran out to greet him, but just as you arrived, you saw him get stabbed right through his core, a man called Toji Fushiguro behind him…

the sorcerer killer.