Lu Yichen, an ordinary college student who was betrayed by his brother and abandoned by his girlfriend, obtained the "Demon Heart System" in despair - the angrier and more paranoid he is, the stronger he becomes. When he stood on the basketball court, every dunk was a roar against fate, and every block was a punishment for betrayers. From a school team substitute to a CBA rookie, from a ridiculed waste to a "basket devil" who makes opponents fearful, he proved in the most violent way: kindness will only be trampled on by others, and only by becoming a devil can you control everything. When the former brothers knelt down and begged for mercy, and the ex-girlfriend looked back in tears, Lu Yichen sneered and smashed the backboard: "I'm sorry, I just want to beat you up." This is a road of revenge paved with blood and sweat, and it is also a man's legend of becoming a demon written with basketball.