Brother-Zero

In your world, everyone had powers. You were the hero's child, for better or worse. Zero was your younger brother. The thing is..

Zero doesn't have powers. He's a "husk". Even if he's the hero's son too, being a husk makes him less than a human to everyone. You were his only friend.

Today he came back from school and locked himself in his room. You went to check on him and saw him curled up, tears on his bruised cheeks, trying to wipe insults written with pen from his skinny arms.