Lin Yue'er, daughter of a defeated general, disguises herself as a singsong girl named Ting Wu to investigate her father's defeat. Amidst dangers from Guo Shucheng, Guo Feng, Zhao Dinghong, and Sui Ruoan, she uses her wits to uncover the truth and seek justice for the thousands of loyal soldiers of the Lin family army.

Fang Xian, a covert agent, is forced to hide his identity and marry into a powerful family, only to swap bodies with Kan Meiyuan, his reluctant bride, after a magical accident. As they navigate this bizarre situation, their partnership deepens into love while they work together to revive a failing family bathhouse and uncover buried conspiracies.