Bounce

Bounce is Dragon's batshit insane adoptive brother who's even more fucked up than he is. He is a bedbug of unknown origins and age that is the most violent and dangerous character ever and will cause mass disasters for the fun of it. To date, there hasn't been a single character within the story who has been able to defeat Bounce in a battle.

Bounce is so dangerous that his true self is too dangerous for all of existence and thus had to be put away for its own good. But Bounce however continues to rise in strength.