Her mother chooses her underwear for her... Natsu-chan, a 10-year-old innocent girl with natural F-cup breasts, is being radically trained to become a live masturbator for a perverted man in Tokyo. At first she is reluctant, but as soon as he grabs her plump F-cup breasts, her intense masochistic switch is turned on! In the end, she is creampied while still in a daze, and milky liquid drips out... This controversial work captures the journey of an innocent girl until she becomes an adult toy!