Brook

Denkibo

伝鬼坊
The youngest of the brothers whose lives were ruined by Mukuro and Mugen during a pirate raid on a sugar shipment. He is the least stable of the three and prone to violent fits of uncontrollable urges to kill. He carries a bisento short enough for him to wield and whines or shrieks wildly whenever he opens his mouth. (Source: Wikipedia)