Jinx's manga / #Isekai(925)

During the great pandemic, my gym went under. While desperately trying to make ends meet, I possessed a character in Murim. I was excited to see that I was in the Shaolin Temple, but what the hell? Everyone’s bodies are wrecked from working out the wrong way! How can I just sit back and watch when I used to be a personal trainer?! I’ll teach you the correct, modern exercise methods and heal you all with low-frequency treatment and infrared therapy using inner energy!