In general, Chuya comes off as an irritable and arrogant character, especially around Osamu Dazai, his former partner turned enemy and rival. He frequently smirks while in combat and is the type to criticize his opponents during combat. Chuuya Is Self-Conscious About His Height His ability, Upon the Tainted Sorrow, allows Chuuya to manipulate gravity. And it's even more foreboding variant, Corruption, grants him a godlike power to control destructive gravitational bombs.