It's the start of a new school year. The new homeroom teacher for Abikura-kun, a second-year high school boy, is Hiyori Hiwamura, who is known as a "Scary Teacher" (Yowayowa Sensei). She is rumored to curse you if she gets offended! One day after school, Abikura-kun witnessed the other side of his teacher... and he is shocked by the gap between reputation and reality!