Taken from behind (Pixiv Fanbox)

Often passed around as a play-toy after sessions, new trainees don’t always have an easy time in the dungeon. This trainee here for example has just finished her first month in the dungeon. To celebrate, her trainer allowed everyone to have some fun with her. However, for each time she climaxes, the difficulty of her next session will be scaled up exponentially. Scared of what might happen to her, she’s been desperately trying to hold in her orgasms while being toyed with repeatedly. From the looks of it, she might just be about to reach her limit~ Let’s hope the other trainee finally breaks her~