IPX-721 The secret of a boxer to defeat a beautiful girl - Ema Futaba

Originally, the gladiator lost when he had to compete with an oversized girl. She had an extremely large body that made him lose face. He refused to lose face, so he used a magic potion to turn her into a girl. She was a petite girl, but after she used the medicine, she not only became smaller but also became more beautiful, and the gladiator was infatuated with her beauty and decided to take her down.