In this first episode, our protagonist, named Mark, is into a Mafia contract and relocated to the mansion of the local Mafia boss, where he meets up with the family - the step Mother, the Tough Elder step Sister, the Cute Little step Sister, the Mookish step Son, and the Mookish step Son's Beautiful Wife. The stage is set for establishing warm relationships with all the women in the family - but it will take a long time before Mark actually gets anywhere.