Just after becoming a working adult, I had to go on a business trip to Tokyo for training. During this time, a relative offered to let me stay at his place, where his daughter—my cousin—would take care of me. Reuniting with her after a long time, I was shocked at how much Yuu had changed, both in appearance and personality. She had become incredibly sexy and cute, constantly flashing her panties during meals. Even while cleaning, she'd bend over in ways that made it impossible not to look. She openly shared stories about her sex life with her boyfriend, acting so carefree and provocative it felt like she was deliberately tempting me. Far from focusing on my training, I found myself slipping into a dreamlike cohabitation filled with lust and desire.