Yuki Kami, Kaori, Kaede Fuyutsuki... A new sensation BEST collection of T-BACKs that bite tightly into the superb beautiful buttocks, dedicated to you, the butt lovers! T-BACK lock that sticks a vibrator into the anus peeking out from the side and fixes it, inserting a penis by shifting it to the side... A lot of play that can only be done with T-BACKs is included. It's more erotic than not wearing any, and the charm of T-BACKs is full!