Wen Tang, the pampered heiress of the Wen family, flees her politically arranged marriage to Ji Wenqin, the scion of the Ji family, by absconding on their engagement banquet and disguising herself as a man. By chance, the fugitive Wen Tang lands a job as Ji Wenqin's bodyguard. As they spend time together, feelings develop, but Ji Wenqin, prejudiced against his fiancée, mistakenly believes he's fallen for his male bodyguard, leading to a series of comical mishaps. During a gathering, she is recognized by her family, including her fiancé. Ji's younger brother, fascinated by Wen Tang's beauty, plots to marry her himself. Only during their second attempt to elope do the leads discover each other's true identities. Ji Wenqin starts to confront his feelings for Wen Tang, and they confess their love. With Wen Tang's help, Ji Wenqin successfully overcomes his father and reclaims the Ji Group, which belongs to his mother, and they live happily ever after.
