yu, who got a job as a new graduate and started living alone for the first time, away from his parents' house. one day, when he was getting discouraged because he couldn't get used to living alone and was scolded by his boss every day, a familiar woman was standing at the entrance. it's his mother, Yukika. apparently, she came because she was worried about yu. his mother's home cooking, which he hadn't eaten in a long time, soothed yu's heart, which had been suffering every day. such yukika will stay overnight tonight, and when they sleep in one futon, yu feels peace and sexual desire with his mother's nostalgic scent and the warmth that is transmitted to him…