Kyou Shigoku Husbando

Kyou Shigoku is the main antagonist of Juujika no Rokunin, being the primary catalyst for many events in the series, as well as being the archenemy of Shun Uruma. He is the leader of Uruma's group of bullies who tormented him in his childhood, Kyou sets himself apart as completely apathetic, cruel, and psychopathic compared to the other four. After Uruma had murdered all of Kyou's followers, the former decided to take his revenge on Kyou. However, it was later revealed that Kyou has a large group of followers, particularly the "researchers" (one of them being Jun) who are sent by Kyou to deal with Uruma.