Shun Daichi, who grew up as an orphan, started working as a live-in worker in the mansion of a famous family, where five sisters with status, fame, and wealth lived, right in front of their elegant, plump bodies and vast wealth. Shun begins to move to obtain all of them. His first target is his second daughter Tsubame. Tsubame is an erotic novelist who pursues pleasure. Tsubame then helps Shun to trap her eldest daughter, Shikaku. Shizuru is a gentle and chaste widow who exudes great tolerance. However, the true nature of her plump body is revealed by Shun...