Seika Private Academy is a well-established school that provides a high-quality education to those of noble blood. The only daughter of the school director and student council president, Yuika Ayanokouji, despises the janitor, our protagonist, who she believes to be of poor origins and lacks dignity. Thus, he is treated poorly by students and teachers alike. Things take a turn for the worse when an incident occurs, leading to the protagonist being expelled from the academy. As he tries to take his own life, a strange female student appears before him...!?