The prestigious girls’ school Usagino Private School is rumoured to be full of cute girls. Shinsuke graduated from a top-tier university and was expected to be the heir of his father’s zaibatsu, which is one of the directors of the school. However, he loves bunny girls more than anyone should. The school’s prestige has taken a hit in recent times and he decided to become a teacher there to help rebuild it and prove his worthiness as the zaibatsu’s successor at the same time. He proclaimed that the cause was a lack of etiquette, shyness and desire to serve among the girls. His perfect plan was to create a "bunny club" at the school and train all the students as bunny girls, who exemplify all these positive traits.