The dynasty collapsed and war broke out. Qin Ziyu, a young apprentice from Songyun Academy, accidentally killed the King of Gaoyang who looked exactly like him. From then on, he was the King of Gaoyang...
However, Qin Ziyu was generous and upright, chivalrous and courageous, and King Gaoyang was arrogant. Their personalities were incompatible, and Qin Ziyu had to go back and forth between the two personalities.