He is a first year high school student at Tokioka Academy, whom at the first day of school was rumored to have a low public moral standing due to a past incident where he apologize for groping some lady's ass that he didn't do (because it was Goriki who actually did it). He admires Anna the school's student council president very much, he was recruited by Kanjou to be a probationary helper in the student council, and later on, the same latter who force him to join her subversive organization call "SOX" in return she would help him get close to Anna.

His father Okuma Zenjuurou is a well known terrorist who gain notoriety for committing obscene acts against public morality where he opposes the enactment of "Act of Promoting Sound Ways of Life and Public Order" 16 years ago.

(Source: E Manga)