A story of two pairs of mother and child. Tatsuo Ueshima, a boy who goes to a university in Tokyo and lives alone. Due to the renovation of the house, my cousin Masaru Yokoyama and my aunt Saeko Yokoyama are the homes of my mother, Mitsuko Ueshima. In other words, he lives in Tatsuo's parents' house. One day, Tatsuo returned home as originally planned, but he could not forbid sexual excitement for his mother, and after an obscene delusion, he repeatedly sexually acted and even vaginal cum shot. At the same time, Masaru spends days forcing her mother, Saeko Yokoyama, to wear obscene clothes. And I also witness the mother and child incest of the Ueshima family.