Mio who remarried to want to build a happy family. But shortly after marriage, I was taken down by my son-in-law, and my husband repeatedly gathered with each other on business. But gradually my request escalates. In the side of my dad sleeping on a certain day, I forced her to forcibly play with my mother-in-law and Mio also drowns in her nasty pleasure. On another day, beyond the door of the bath where my husband enters, as it is told, blowjob ... ... and Mio who is turning into a sexual slave of my husband. And while my father is away on business, I get a friend in my house and embrace my mother-in-law. Together with friends I went to SEX and caught my attention and I joined the circle幸せな家庭を築きたいと再婚した美緒。しかし再婚後間もなく、義理の息子のあつしに寝取られ、夫が出張のたびに情事を重ねていた。だが、次第にあつしの要求がエスカレートしてゆく。ある日酔って眠る父の傍らで、あつしは強引に義母の体を弄び、美緒もまたその淫らな快感に溺れていく。別の日には、夫が入る風呂の扉の向こうで、言われるがままフェラチオ…とあつしの性奴隷と化していく美緒。そして、父が出張中、あつしは友人を家に引き入れ義母を抱かせる。友人との中出しSEXに悶える姿を堪能したあつしは自分もその輪に加わり…。