Qi Huan'an's family was framed by the court and everyone was wronged. In order to save his life and secretly reverse the case, he was forced to deal with Zhang Jiuyuan, the powerful King of Zhenbei. Zhang Jiuyuan was attracted by his clean appearance when they first met, and forcefully kept him by his side. While taking advantage of Qi Huanan's family connections and medical skills, he couldn't restrain his temptation. In the midst of court battles, border wars, and imperial power calculations, the two went from suspicion, temptation, and forced possession to surrendering their sincerity to each other. They worked together to eliminate the traitors, clear up the injustice, and finally put aside the shackles of the court and stayed together for a lifetime.
Philosophy: Zhang Jiuyuan, the cold, cruel and lonely King of Zhenbei, learns trust and gentleness because of Qi Huan'an; Qi Huan'an, a forbearing and self-sufficient young man from an aristocratic family, gains courage and confidence because of Zhang Jiuyuan. One person crosses the abyss, another person warms the cold snow, heals each other's imperfections, and completes growth together.