Ticklish Pull-Ups (Pixiv Fanbox)

We have all sorts of training methods at the dungeon, however, the best ones are the ones where the trainees bring their own demise over themselves, such as here. The trainee is tied up, hanging from the ceiling with a large vibrating rod inserted as deeply as possible from below and a magic wand attached outside. The trainee’s goal is to do as many pull-ups as possible, causing the rod to slide in-and-out of their body with each lift. The trainees are told to follow their trainer’s orders, failing to continue with the pull-ups causes the trainees to be tickle-tortured until they willingly continue~ Especially badly-behaved trainees also get tickled while doing their pull-ups with no set goal as a form of punishment for disobeying their orders~