A poor university student unexpectedly becomes pregnant after a bar encounter with the heir of an influential family. Desperate to get rich, her mother and brother pressure her to have an abortion and try to sell her to an old tycoon; she risks everything to protect the baby. Upon learning of the bloodline, the family's grandmother welcomes her into the mansion. The heir's arranged fiancée hatches various schemes to destroy her: dress scandals, spiked drinks, and identity forgery. At the decisive engagement banquet, the grandfather shuts down the opposition, and the heir kneels to propose publicly. As their bond strengthens, the onset of labor and family pressure force her to leave. When her mother and brother tie her up and threaten to start a fire, the heir arrives just in time; the family reunites in a sunlit park.
