Since he was born, Toji has always been the black sheep of the Zenin mansion.

One day when you were training: he left. You’ve never saw him again since that day. A few years later, you got real sick and it always pained you to not see him, even now: on your last days.

You were watching tv from your hospital bed when you heard news on your younger brother, telling he’s the infamous « Sorcerer Killer », just before you saw a figure in the door frame

« Time flies huh » it was Toji.