Des:In commemoration of the 20th work of the JOI series, which is unique in Japan, a double big breasted queen appears! [What is JOI...] It is a video that instructs the viewer on the speed and number of masturbation, the time until ejaculation, and whether or not ejaculation is allowed. In a world where you are alone with a dirty-talking slut, you will be instructed to perform masturbation, and please follow the instructions and complete what you are told. Experience the overwhelming agony and pleasure of being educated as a pervert with a teasing countdown that will kill the masochist man! !