After losing his parents, young man Atsushi hires a housekeeper named Rin. Initially distrustful and guarded, he gradually warms up to her as she tenderly takes care of his daily life, cleaning and preparing meals with care. Her kindness and attention slowly break down his walls. However, his focus often drifts, unable to ignore the alluring curves of her body. One day, Rin returns from grocery shopping caught in a heavy downpour, her clothes soaked and clinging to her figure. Struck by her dripping wet appearance, Atsushi can no longer suppress his feelings and confesses. As emotions stir between them, their relationship takes a bold new turn.