When my brother got married and brought Sumire-san along, she was a gentle and kind-hearted woman. I fell in love with her at first sight. Since then, for more than a decade, I have secretly harbored feelings for my sister-in-law Sumire. A turning point came for me a few months ago. Due to work circumstances, I became a guest at my brother's house. The children had already left the nest, and my brother and his wife welcomed me warmly. When I arrived home after my night shift, I heard Sumire's troubled breathing. Yes, she was comforting herself alone. Seeing her embarrassing appearance, I panicked and hurried to my room, saying sorry. Later, Sumire came to my room, looking embarrassed. I interrupted her attempt to speak with 'um...' and confessed my long-held feelings, saying I had always liked her. After a long silence, Sumire took my hand and nodded. We naturally embraced, kissed, and became one...
