her mother

Mother and son, Sumika and Yuka, are as close as sisters. Yuka's boyfriend, Ryo, who is now around the same age, was in a relationship with his family, including Sumika. Meanwhile, Yuka plans to have Ryo stay overnight during her husband's business trip, and Sumika agrees... On that day, Sumika is curious about the state of Yuka's room and soothes her heated body with masturbation. Meanwhile, Ryo is standing alone in the kitchen, unable to sleep next to Yuka due to his nervousness. Sumika comes to Ryo while scattering pheromones...