Bopobo  

, ボポボ

A person with a criminal record under the name of Razor is known for committing theft, murder, rape and 11 other offenses. In their first sumo match against Killua, they lose due to having their face burned. Driven by revenge, they intentionally lose the second match as well. When instructed to purposely lose a third bout against Killua, they rebel, ultimately resulting in their death at the hands of Razor.