Lin Yan is the unmatched merchant emperor and supreme healer, yet he hides in the city working as a cleaner. He saves Huo Zhiruo, the young lady of the Huo family, and gets tangled in aristocratic disputes. Betrayed by his fiancée Su Qing and mocked by his sworn brother Chen Hao, he reveals his true identity at the wedding to crush the two traitors. Later, Chen Yuan frames the Huo family for killing his master and wiping out a clan. Lin Yan teams up with Huo Zhiruo to uncover the truth. They finally marry and spend their lives together.
