Kawano Ritsuko-chan, with her cute small breasts and black hair, is a beginner-type girl. Since she says, "Please look at my vagina," let's show you! Ritsuko-chan uses a vibrator to perform an extravagant masturbation. You can see her vagina perfectly, even measuring its size with a caliper or using a Cusco thermometer. Enjoy Ritsuko-chan's reactions!