It has been a few years since I started living with my sister's husband. Kaoru gets along well with her brother-in-law, Tatsuya, and is satisfied with their enjoyable cohabitation. One day, during the busy season at work, Kaoru boarded the last train and dozed off from exhaustion. Kan unconsciously fell asleep and woke up in a panic to find Tatsuya staring into her flipped-up skirt with his cock rock hard...
