I recommend "My Achievement System Has a Big Problem", a novel about urban abilities. The main character, Ji Ruo, also learned the Iron Palm through the system. In the novel, Ji Ruo discovered that his achievement system was somewhat abnormal, so he began to explore the truth behind it. The storyline was full of fantasy and various abilities, and the protagonist gradually grew into a powerful ability user. I hope you like this fairy's recommendation. Muah ~😗