Hyakushi Ono

About

Age: 25
Height: 182 cm (5'12")

He suffered the loss of his parents 14 years ago in an airplane accident. He and his twin sister Senri survived the crash, but her butterfly was stolen afterward, leaving her in a comatose state. Hyakushi joined the Death Bureau with the goal of finding her butterfly. He displays coldheartedness against criminals that trade butterflies in the illegal market but in reality is a keen and tearful guy.

(Source: Butterfly Storage Wiki)