Han Yeonu, known as “No Mercy,” was a legendary player of the nationally popular esports game Hero Fighters. After a hand injury forced him into retirement, he struggles to earn money for his younger sister’s medical treatment. One day, after defeating the final boss of the VR version of Hero Fighters—a boss nobody else had ever beaten—the game suddenly ends, and items from the game begin appearing in the real world. The world descends into chaos. To survive, there is only one path: become the strongest. Countless players will be trampled on in the struggle for supremacy. Who will ultimately stand at the top? Source: [Line Manga](https://manga.line.me/product/periodic?id=S161629), Translated