Erika lives as the wife of the young president of a small construction company. Yuugo had a crush on 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, several years after Erika and Yuugo grew up, the place where Yuugo got a job was Makoto's company. Having an unexpected encounter, Yugo is filled with feelings for Erika and becomes jealous of Erika, who lives elegantly and acts strangely...