Sweaty Training Gym NTR - My wife, who started going to my workplace, has been cheated on by a senior with a super-sexual cock~

My wife, Azusa, says she's trying to prevent infidelity, but she asks her three times every night, but I'm already sick of it. When I talked to my senior at work, Kimoto, about this, he replied, "Why not let him exercise at the gym at work until he is exhausted?" I immediately bring Azusa to the gym and get Kimoto-senpai to instruct him... just wait a moment!? Isn't the two of them too close? Ah, they're so close... they're so close, no matter how close they are! I was driven by anxiety, so I secretly monitored the two of them's progress...