In a martial arts world where strength reigns supreme, Lin Chuan, the weakest student at Jiangcheng No. 1 High School, has endured constant bullying. But when school bullies corner him in an alley to extort him, his fury erupts and awakens the Mad Fury System! With an SSS-grade talent and nine levels of Body Tempering, the supreme Mad Demon Physique instantly becomes his. From then on, the angrier he gets, the stronger he becomes, and the more fiercely he fights. His enemies' fear and despair are transformed into Fury Points. When geniuses provoke him, he suppresses them with a single punch. When powerful clans block his way, he sweeps them aside with a wave of his hand. Evil cults, beast tides, and foreign races attack one after another, but he only laughs more maniacally. In this world, whoever dares to stand in his way will be sent flying!