Su Mo originally lived in seclusion in a paradise at the junction of the North and the South. By chance, he became the military advisor of the Nanfeng Kingdom. With his help, Nanfeng gradually became stronger. However, Xiao Yue, the king of Nanfeng who has a heart for the city, gradually discovered Su Mo's unknown secret. At the same time, Su Mo found that the subtle emotions between herself and Xiao Yue seemed to be the biggest obstacle... In the end, who was in whose trap, and who owed whom.