Ayumi can't hide her joy when her shy son, Kenta, comes over with a friend. Sasaki is a kind, good-achieving honor student who is apparently trusted by his teachers. However, no one knows that Sasaki has a dark side. His friendship with Kenta is just a game after all. Sasaki's real goal is to get his hands on Ayumi's body. Sasaki takes action to seize Ayumi's busty body, which unconsciously exudes sex appeal...