This Summer, I Will Steal You Away

A male student who spends his lunch breaks alone in the school library is unexpectedly approached by Maihama, a beautiful and popular classmate. She reveals that she is bound by an arranged marriage to an older man from a wealthy family and asks the protagonist to help her gain sexual experience before the wedding. Agreeing to her request, they begin a secret and intense physical relationship within the library. As their encounters continue, Maihama expresses both happiness and guilt over deviating from her predetermined path. Despite knowing she is supposedly unattainable, the protagonist confesses his love for her, leading the couple to run away together, unable to deny their mutual feelings.