An assassin and member of The Order, making him one of the most powerful members of the JAA. He sports a metallic jaw-piece on his lower jaw, wears two large chain necklaces, and has many piercings. Despite being colleagues, Hyou finds Nagumo untrustworthy and often shows hostility towards him. In chapter 127:

Spoiler

Hyou is killed by Kumanomi in Thailand.