Our household had always been peaceful, but one day everything suddenly changed—my older brother and his wife moved in. My brother had been living apart for work, but a few months ago he returned, bringing his wife Rena with him. As the younger brother, I was constantly on edge around Rena, completely flustered by her stunning beauty and voluptuous breasts, my heart racing every time she was near. Having rarely interacted with women other than my mother, being around Rena was uncharted territory. One day, my mother left for an extended trip, leaving just four of us at home: my father, my brother, Rena, and me. My brother teased me for being awkward around his wife, but Rena looked at me with a faintly sad expression. After my brother left for work, Rena came to my room. "Do you hate me?" she asked. I quickly shook my head no. Relieved, she smiled warmly, slightly blushing.