His mother, Shizuka, remarried Genji, and Susumu had a stepfather.Genji didn't like Susumu's existence, and his family was in a state of disarray.For Susumu, who endures sarcasm from Genji even during meals, the only salvation is the existence of Shizuka.Susumu and Shizuka had a deeper relationship than before...However, with Genji's arrival, Susumu became unable to frankly depend on his mother, and Susumu, who had a growing desire, sought her mother's body under the kotatsu, which was surrounded by three people while pretending to be her calmness. It becomes like….