AGMX-031 Reincarnated as an M Male ~ I'll become an M male in front of you ~

Whether male or female, if both claim to be S, the stronger one becomes S and the weaker one becomes M. When a man has no choice but to play as an M male, what happens to the man who says he is S? Initially, he couldn't accept it, but through extremely intense slutty behavior, the man falls into being M. Nipple torture, leg job, edging. Enduring various humiliations, he ultimately begs for ejaculation and realizes that he has become an M male.