Tetsu Asakura

Tetsu is one of Kumiko039s lackeys. He is a member of the Yakuza group and is very devoted and protective of her. He and Minoru always keep an eye on Kumiko and do their best to help her when they can. Kumiko took him in when he was a teen calling him a 039younger brother039 since the family didn039t accept underage kids and he had no where else to go. Source: Wikipedia