The woman my brother brought home when he got married, Sumire-san, was a calm and kind-hearted lady. I fell for her at first sight. Since then, over the course of more than ten years, I have harbored secret feelings for my sister-in-law, Sumire-san. A few months ago, however, my life took a turn. Due to work circumstances, I ended up staying at my brother's house. My brother's children had already left the nest, and my brother and his wife welcomed me into their home with open arms. When I returned home after a night shift, I heard Sumire-san's troubled breathing. She was alone, comforting herself. Seeing Sumire-san in such an embarrassing state, I panicked and fled to my room, apologizing as I went. Later, Sumire-san came to my room, looking embarrassed. As she opened her mouth to speak, I interrupted her and confessed my long-held feelings: 'I've liked you for a very long time.' We looked into each other's eyes, and after a long silence, Sumire-san took my hand and nodded. We embraced naturally, kissed, and entwined our bodies...
