Is the System Only Equipped for Support? I Will Conquer the World with One Punch

"SSS level, system? Isn't he just an errand boy, haha" "Foster son, have you ever seen a punch move a mountain?" When everyone else is laughing. Lu Feng killed the ferocious beast with one punch, and the world finally woke up. "Who the hell said that the system is auxiliary?" "This one punch from the horse will kill me!" "Sorry, I can still use ice." "... Are you sure you didn't awaken dual elements?" "No, no, no, I just work a little bit harder than ordinary people."