Kosuke is a marriage candidate for Madoka and lives together with Sakura, Madoka’s stepsister in a house. After Sakura it is now Madoka who is taking interest in Kosuke. Both spend a couple of days together having a great time and hardcore sex. Because Madoka fancies him a lot she tries to keep him from Sakura since she fears that her stepsister might still take Kosuke away from her. Sakura in turn is trying to forget her feelings for Kosuke but the memory of him and the awesome sex are likely to win eventually...