The ultimate subjective JOI work that writhes with Ai Mukai's obscene words! [What is JOI?] It is a video that instructs the viewer on the speed and number of times of masturbation, the time until ejaculation, permission or non-permission of ejaculation, etc.You are instructed to masturbate in a world where you are alone with a lewd slut, and follow the instructions and clear what you are told. Please experience the overwhelming agony pleasure with a perverted education with a countdown of teasing that makes M man dead! !