Cheat Item Kanrikyoku no Oshigoto EX 1

A bright-eyed rookie signs up for what sounds like the supernatural version of a superhero squad: rescuing people whose brains got scrambled by magical cheat gadgets, then gently wiping the trauma away and sending them back out good as new.

Day one, he gets dropped alone in a room full of memory-wiped victims with no supervision and a boss who strolls off with a cheerful "You got this!"

The tiny catch is that nobody will ever remember what he does in there, and as a horny guy with no morals... you can imagine what happens next.