A miracle suddenly happened to the Oshima family, who live with a father and two sons. This cute Tia-tan is a mother from today! ? This work is a messy story of love, youth, and sex unfolding under one roof by a slightly natural and very sexy Tiamama. Sex with her husband, forbidden sex with her ex-boyfriend, sex with her sons who lost her virginity... Her unbelievable sex life is revealed one after another.