Li Wu, born into humble beginnings, is mistakenly recruited into the elite Imperial Secret Police—the Embroidered Uniform Guards. Though he comes across as cunning and smooth-talking, he is sincere at heart and values loyalty. Lu Zheng, a cold and reserved original member of the guards, is his opposite in many ways.

Despite their differences, the two form an unlikely friendship and grow through their shared experiences. As they’re drawn into complex cases and tangled court rivalries, they must rely on each other to survive. But with danger closing in from all sides, can they uncover the truth before they themselves become the next targets?