Mizuki Fukuyama, 45, with an elegant short haircut that gives off a pure and refined impression. She works as a librarian and enjoys visiting art museums on her days off, living a leisurely life. Mizuki has graceful manners and looks like the epitome of a chaste wife, but she actually has an extremely sensitive body that cums just from having her nipples played with. Her husband is shocked by her unimaginable lewdness...