A billionaire heiress goes to the airport to greet her future mother-in-law in secret, only to be mistaken for a mistress while her boyfriend's flashy lover is welcomed as the "daughter-in-law." Humiliated by the gold-digging elder, she fights back with the help of a powerful matriarch and discovers her fiancé's betrayal. With her eyes opened, she begins a calculated revenge—and finds an unexpected alliance with the matriarch's own son.
