Veteran sex teacher Momoka Ogawa returns to teach another first-time anal lesson. Her adult student role-play partner is Ichika Nanjo, now blonde and blessed with a huge G-cup bust and a cute, youthful-looking face. Because Ichika is nervous, Momoka demonstrates first: the student and the male practice partner expose her round ass, lick her anus until it is slick, then ease a finger inside. Ichika watches with fascination, knowing she will have to try every step herself. Will she manage her first full anal penetration?