Teppei Houjou

Teppei is Satoko and Satoshi's uncle/foster father. He and his wife were forced to take care of Satoko and Satoshi after the death of their parents, but they abused them. He currently lives in Okinomiya. According to Kasai, he is a pimp and uses his lover Rina to swindle men out of their money.

(Source: Wikipedia)