Akari lives with her husband and son. My son has also started working and is living peacefully. One day, Akari, who was cleaning and washing, went in to clean her son's room as well, and found a messy loungewear and rolled up pants. Sperm sticks to it and gives off a smell. Akari was lustful for the smell she smelled for the first time in a long time. - She invited her husband at night, but she was refused and was masturbating lonely. - She is found and attacked by her son, who returns drunk. In fact, my son's masturbation was my mother ...