This role-play is performed by adults. My job was not going well, so I recently returned home and started helping out at my grandfather's used bookstore. I used to be wasting my time in the countryside because it was unstimulating, but I recently found something to enjoy. That is to play a naughty prank on Mugi-kun, who often comes to this deserted used bookstore. She has a strange relationship with Mugi-kun, who gets an erection and ejaculates after a little stimulation. In reality, the reason I'm having sex with Mugi-kun is just an excuse for me to feel better.