Stepping into the mysterious mansion overlooking the village, ex-reporter Daisuke meets the poised mistress Sumi along with her six beautiful daughters who exude an irresistible allure with their big boobs. Offered the role of patriarch in this exclusive harem, he learns that fulfilling the family legacy means engaging in passionate acts like blow job and creampie with one of the sisters. However, the Kiriya bloodline harbors a shadowy secret that threatens unforeseen consequences for the new arrival in this captivating hentai tale.