Erika lives as the wife of the young president of a small construction company. Yuugo fell in love with Erika when she was a student. Yuugo has a personality disorder, doesn't go to school, and still has obsessive feelings for Erika. And now, a few years later, Erika and Yuugo have grown up, and the place where Yuugo works is Makoto's company. Having an unexpected encounter, Yugo is overwhelmed with feelings for Erika and becomes jealous of Erika, who lives elegantly and acts strangely...