On the night of the fall of the Dragon City, the bloody altar dyed the thousand-year-old ancient capital red, and the entire human elite team was wiped out. The only "key" escaped in the cracks in space and became an unexpected variable in the dragon tribe's sacrifice plan to awaken their fellow tribesmen.
Eight years later, Lin Haoze in a small southern town was living an ordinary life, but he did not know that he was the "Legacy Key to the Dragon City" that survived the catastrophe - possessing the blood of the Dragon Clan that could tear apart space barriers. It was the last hope of mankind against the Dragon Clan and the biggest obstacle to the Dragon Clan's domination of the world.
The secret search of the Rhine College broke the tranquility of the town, and the conspiracy of the "New God Project" lurked in the darkness. The ambitions of the four major colleges, the overwhelming hatred of the secret party, and the ancient curse of the Dragon Clan were all intertwined with his appearance. When the dragon's breath deep in the bloodline quietly awakens, and when the sacrifice of his adoptive parents reveals the dust-laden secret, Lin Haoze stands at the crossroads of fate: should he become a "key" controlled by the bloodline, or should he break fate and find a path to redemption in the thousand-year hatred between humans and dragons?
The ancient dragon roar resounds throughout the world again, and the battle flag of the racial war is raised again. This chess game woven by fate will eventually be decided by the "key" himself - will it be destruction or rebirth?
