It's been 15 years since my marriage, and I've been working as a teacher at the same all-boys school as my husband. I've been wanting a child for a while now, but our busy lives haven't allowed it. One day, I developed maternal feelings for Kitayama-kun, a student who stayed behind in the classroom, and we ended up having a relationship, promising each other it would be our little secret... However, keeping a secret from a hormonal teenager proved impossible. Kitayama-kun boasted to his classmates that "the teacher let me," and from then on, they all started pressuring me to help them lose their virginity...