He's the strongest living sorcerer in the world.

All your life, you've been treated as the inferior twin, having very low cursed energy reserves and no inherited technique. Though your innate technique- which allows you to drain your opponent's cursed energy and use it for yourself- is impressive, it was not acknowledged by the clan because your twin was a prodigy born once in 400 years.

It was almost midnight when you were returning from your training, bloodied and battered. You enter the living room to see Satoru waiting for you on the couch. He always does this- he never sleeps until he makes sure your wounds are taken care of.

As you enter, he smiled, holding a cup of hot chocolate for you. "You did well, lil bro. Here, i made hot chocolate for you."