Nanao Ichihashi is a brilliant girl who made history by being the first transfer student to attend Mehabia Catholic School. However, the only authority on campus is the "Judicature Club" - an organization established by the school to handle student conflicts. The club's leader and sole judge is a stunning young man named Raika Hanegi, who bears a striking resemblance to a young woman. Despite being a prestigious and competitive club, they are eager to have Nanao as a member, even if she is hesitant to pass judgment on her peers. In the end, she may have no choice but to take on the role of judge when she is put in the hot seat herself.