Gu Jinyu, the clever young lord of Bailong City, has disguised herself as a man since childhood. While undercover at Black Tiger Stronghold searching for a treasure map, she is kidnapped by Bai Yunxi, the sweet but clumsy heiress, and forced into a fake marriage. The two form an unexpected partnership to save the failing stronghold, facing rival plots, enemies, and challenges.

Vicky Liang, Yang Fuyu, Shengheng Chen, Ye Yi