Summary of the story: Xiao Junhe, the seventh prince of the Great Zhou Dynasty, whose mother died early and whose relatives were helpless, was like a lone boat in the whirlpool of kings fighting for the right to inherit the throne. He stayed behind closed doors all day long to thank guests and only kept company with calligraphy and painting. He was known as the most non-threatening "idle prince". However, no one knows what kind of deep ambition is hidden under this gentle and harmless skin. When the old emperor was critically ill, the prince was confused, the powerful officials were in power, the foreign tribes in the north were in power, and the Great Zhou Dynasty was in turmoil, Xiao Junhe, who had been dormant, finally waited for his opportunity. With a secret edict and a near-death trip to the north, what he wanted to see was General Zhenbei, who had been forced into a desperate situation by his political opponents. What he wanted to do was to take charge of the three armies in a desperate situation and save the building from collapse. And what kind of future will the mysterious woman who met him by chance and saved him from danger several times have with him in this mess?