Koji Kageyama is invited to a suspicious job offer, the mansion where the village left was visited. The master Masamune in the mansion that builts on a vast site, it ordered it to Koji.

"Instead of me, embrace the women. Amuse me..."

The partner was brought by force, three sisters and the mother. To realize my desire and the elderly persons wish, Koji starts on a course of action. Shame and pleasure, the door of Secret club that degeneration and Chaos rule is opened now...