Zhao Yunlan, a modern special forces soldier, accidentally traveled to a border army primary school and broke into the capital in search of his childhood sweetheart Su Qingyi. It happened that Taishi Wei Yanzhao colluded with Beidi to launch a palace coup, and Emperor Liu Che was trapped and dying. Zhao Yunlan rode alone into the battle to rescue him. Liu Che was so moved that he cried and asked for a Zen position, but Zhao Yunlan sneered and refused: "Thousands of miles away, I can't smile like her." He and Su Qingyi broke out of the siege, but were involved in the grudges of the previous dynasty and the conspiracy of imperial power. The mystery of Liu Ruyan's identity, Tuoba Lie's life and death entanglement, and Wei Yanzhao's dying counterattack forced him to break through this troubled world step by step - just to protect that beautiful figure.