The King of Assassins in the dark underworld and the leader of the "Wolf Organization"—the legendary 'Wolf King'—fails a mission for the first time. Heavily wounded, he retreats to China. To investigate the secret of his parents' origins and fulfill his father’s dying wish, he becomes a "live-in son-in-law" for the Feng family. He is no longer the Wolf King; he is now Jiang Hao. A year ago, the dark world declared that the 'Wolf King' had fallen after his failed mission. But now, Jiang Hao has hidden his legendary identity within the city, ready to unleash a frenzy of revenge and slaughter! [Original Webtoon](https://www.kuaikanmanhua.com/web/topic/27455)

In a world devastated by catastrophic disasters, humanity is pushed to the brink of extinction as terrifying monsters and supernatural beings begin appearing across the world. Cities collapse, chaos spreads everywhere, and survival becomes more difficult with each passing day. Amid this disaster-filled era, one hunter awakens a mysterious Experience Point System that allows him to continuously grow stronger through battle. By defeating powerful enemies and surviving deadly encounters, his abilities rapidly evolve beyond ordinary hunters. However, the world’s dangers continue to grow as stronger monsters and hidden threats emerge from the shadows. To survive this brutal new age and uncover the truth behind the disasters, he must continue fighting and become one of humanity’s strongest hunters. [Original Webtoon](https://www.kuaikanmanhua.com/web/topic/27683/)