Beauty's Bone, Scarlet Sleeves

Dai Qingyin, the eldest daughter of the top imperial merchant family, disguises herself as the courtesan Hongxiu to seek revenge against the Emperor, Xiao Yanhe, after her parents are killed by mountain bandits wearing the Imperial Guards' token. She falls in love with a guard, who is actually the Emperor in disguise. Through misunderstandings and investigations, the two identify the true culprit, Prince Rui, and expose his conspiracy, and she both gets her revenge and finds true love.