Welcome to the Do-It-Club, where only perverts gather!! This club with the motto "Let's get along and be filthy together" that a new college student, Hiroshi Hirose, is checking out lightly, is in an outrageous club filled with girls who love sex!! (Source: Coolmic) Includes the extra chapters: 1. Uwakishou Kanojo (浮気性彼女, Filthy Girlfriend) 2. Cosplay Hitozuma Ai (コスプレ人妻あい, A Married Cosplayer, Ai) 3. Seiryaku Kekkon (性略結婚, Sex Marriage)