OBA-055 Incest: Keita, I'm sorry I'm such a naughty mother... Sayuri Ikuina

After 20 years of marriage, Sayuri's son Keita has come of age, and she is relieved that she has fulfilled her role as a mother. However, Sayuri's peaceful daily life is about to crumble due to a certain incident. One day, Sayuri is raped by Kobayashi, a part-time newspaper delivery man with whom she was supposed to be close, without knowing why. Just as the wounds in her heart have healed, the stimulation of Kobayashi's penis engraved into her body transforms Sayuri from a "mother" into a "woman"...