Recently, there has been almost no nighttime activities, and Mizuki was on the verge of forgetting herself as a woman. One day, when Yuusuke, a neighbor who had returned to his hometown after a long time, ended up staying at her house by chance... That night, by coincidence, Mizuki exchanged a kiss with him and unexpectedly felt a throbbing in her body. "Even though I'm such an old lady, are you really okay with this?" she asked hesitantly, but once she allowed her body to be touched, Mizuki's body sought pleasure and could no longer be stopped...