In his first year of high school, Naito Fujishiro had a reputation for being terrible with girls. Despite avoiding their advances, he was pleased to be enrolled in a boys-only school. However, this dream was shattered when he discovered that the school was going to become coeducational that year. On the first day of school, Naito panicked when he learned the news and found himself standing in front of the gate, unsure of what to do. It was at that moment he met Himeka Ichinose, also known as "The Pure White Princess."