Because his mother and sister are both fans of professional wrestling, Kinjirou Sakamachi has built a tough physique capable of withstanding heavy punches, fierce kicks, and even impacts from vehicles, allowing him to endure their various grappling holds and locks. However, this upbringing also led to gynophobia, an irrational fear of women. A single touch from a girl causes his nose to bleed uncontrollably, makes him sweat profusely, and in rare instances, causes him to faint suddenly. His life takes a turn for the worse following a fateful encounter in the restroom. While attempting to flee from a girl, he uncovers that Subaru Konoe, the school’s most popular student and butler to the headmaster’s daughter, Kanade Suzutsuki, is actually a woman. Shocked, Subaru violently attacks Kinjirou, inflicting serious injury and knocking him out. Upon regaining consciousness, he meets Kanade. In return for keeping her secret, she promises to help cure his phobia.