Newlywed Tsubomi lives a peaceful life with her husband, until one day a man moves in next door and stirs emotions she thought long buried. This man is Kudo, her former homeroom teacher whom she once idolized during her school days. On the day they reunite, Tsubomi can't resist her feelings and gives in to passion. Torn between her loyalty to her husband and the rekindled flame of her youthful desire, Tsubomi is caught in an intense inner conflict. The story unfolds as a gripping battle between love, guilt, and overwhelming desire.