Dazzling smiles and bouncing boobs! Members of the badminton club for working adults. It's not just sweat that splashes on the court! The coach's fingers reach into sensitive areas under the pretense of instruction, but the brave members put themselves into practice earnestly, enduring sexual harassment and saying, "This is also practice." However, what the coach wants is the girls' bouncy, healthy bodies! The devilish coaches do whatever they want, forcing them to give blowjobs in the bathroom and giving them titjobs in the shower room. However, it seems that some members are actually provoking the coach and enjoying some slutty play... The shocking reality of the working adult sports club unfolds in the gymnasium!