When my mother was hospitalized, I found myself living alone again for the first time in a while. As a result, the house had become messier than ever. Concerned about the situation, my sister-in-law offered to help me with the housework. However, no matter how much we cleaned, the rooms wouldn't return to normal, and we only managed to finish tidying up completely by the time she was about to leave. The thought of being alone together late at night was already thrilling, but seeing my sister-in-law stepping out of the bath, completely exposed and defenseless, heightened my anticipation even more. Entranced by her appearance, our relationship gradually grew deeper.