Koji's parents passed away and he now lives with his older brother and his wife. Her sister-in-law, Rieko, is frustrated with her nightlife with her husband, Koichi. Such Futari opens her forbidden door by chance... Koji's cock that warped against Gingin pushed the switch of Rieko's desire. Slender body, charming lips... Will Rieko be able to finish that day as a one-time mistake?
