Overview of the Show: Youhei lives with his mother, Kaho, and cousin, Fumika, in a calm environment. Kaho unexpectedly discloses to Youhei that she is not his biological mother. Although this depresses Youhei, Kaho assures him that nothing has changed and that he can continue to live with her and Fumika, whom he has always treated as a sister. However, a lady claiming to be Ikue, Youhei’s genuine birth mother’s younger sister, moves in next door and requests that Youhei join her. While Youhei is perplexed, the three women attempt to lure him with their gorgeous bodies.