High school student KinjirÅ Sakamachi starts his day with a painful awakening from his younger sister Kureha Sakamachi. Upon arrival at school, Subaru Konoe is seen as a student who works as a butler for Kanade Suzutsuki. KinjirÅ has gynophobia, the abnormal fear of women, which is shown after a weird encounter with Nakuru Narumi. While cooling off in the restroom, he chances upon Subaru wearing girl's underwear, which results in Subaru chasing KinjirÅ to the chemistry lab and attacking him for what he saw. When a jar containing a frog falls from the shelf, KinjirÅ jumps in to save Subaru, but KinjirÅ discovers that Subaru is a girl after landing on her chest. In response, Subaru throws a fire extinguisher at KinjirÅ, which knocks him unconscious. He later wakes up in the infirmary chained to the bed with one hand free next to Kanade, who teases him a bit. She explains that the Konoe family has served the Suzutsuki family through lineage, in which Subaru, as the only child in her generation, must cross-dress as a boy to attend high school and continue serving as a butler. Kanade threatens KinjirÅ with her sadistic behavior and forcibly forms a contract with him to keep Subaru's true gender a secret, as well as to find a way to cure his gynophobia.