A timid office worker Keitarô Tamaru loves studying fantasy and myths. Even if Tamaru make an outstanding performance in his fantasy and connect with a wonderful woman, in reality he will only fail. As a result, he was finally downgraded from his employee job and decided to signed up as a security guard. One night, Tamaru and Chief Guard Yamamura were attacked by a mysterious group that has invaded the company, and Yamamura is seriously injured and hospitalized. However, Tamaru meet a wonderful woman who always appears in his fantasy dream. Her name was Hiroko Yamamura, the daughter of Yamamura. Tamaru rejoices, but after a short while, he is suspected by the police to be a member of a group that has invaded the company and is arrested. Tamaru escapes from the detention center and stands up to save Hiroko, who was kidnapped by the group.