Sumire Kurokawa, a female teacher at an all-girls school, has been having relationships with her students every year she becomes their homeroom teacher. This year, she sets her sights on new student Chisato Monaka. Although initially hesitant, Monaka finds herself drawn into a forbidden affair under Sumire's guidance. It's okay, I'll teach you how to love a woman. After all, I'm your teacher. As electric currents course through Monaka's body, she experiences an indescribable sensation...