Discovering that her husband was having an affair, Kana was shocked and left to live at her son's house in Tokyo. From childhood to adulthood, Kenji never paid attention to his mother's beauty. But when his friends constantly praise Kana, Kenji also gradually realizes how beautiful his mother is. Living with his beautiful mother, who often dresses revealingly, makes it very difficult for Kenji to lower his temper. Not only Kenji, Kana is also feeling extremely lonely, unable to control herself and masturbating right next to her son. The next morning, as soon as she woke up, Kana smelled sperm. Searching for the smell, she finds out that it is Kenji's, Kana can't resist sucking her son's cock...