Saori, a school girl, is molested on the notorious "molester train" of the Hanagawa line and rescued by another school girl who witnesses the act. The girl who rescues her turned out to be a new student of the same high school Saori attends. The mysterious new student Yuriko is rumoured to be a "parent killer". Yuriko then leads Saori and her friends to hunt molesters.
A cure for a certain disease. The side effect was to "forget" a certain person. Seto Yukiya is a man who has "forgotten" his ex-girlfriend. Mikoto Hayashi, a woman who has had a crush on Yukiya for many years, lies to him that she was his lover. Chisa Nagato, a wife who has "forgotten" the loss of her beloved child. Her husband, Kojiro Nagato, tries to pretend that they never had a child. This is a story of two couples, a man and a woman, and the people who stand by them...
