In front of everyone, she's my teacher, but when we're alone, she's my secret girlfriend. He monopolizes the object of admiration among male students. She plays with a dildo in the empty nurse's office early in the morning, secretly cums in the reception room in the corner of the school during lunch break, and gives sexual harassment guidance in the club room after school. Then, before the gates close, they sneak into the night shift room and confirm their love for each other. The teacher, who is kind to everyone, shows her lustful and obscene side only when the two of them are alone, and they can't stop their forbidden romantic relationship.