A rookie esthetician, Mirai, is given a lecture on anal sexuality by a veteran female lecturer (Ko Akemi) and learns the pleasure of anal hole. Then she shows her talent as early as possible, even though it's the first customer service, she licks the customer's anus with a drill tongue, sticks her finger in her butthole and makes her faint in agony with a handjob...! Reciprocal feeling of anal licking to beautiful buttocks massage, and anal production using own butthole, "Amazing! I'm going to go with my butthole!"
