Sakao Duen returns to Thailand with her father, Wisut, after being raised in France. Her birth, hidden by Wisut, is discovered by Luang Ratchamaitree, who forces him to leave Kratai at the Ratchamaitree home. Kratai forms a close bond with Songklot, a future doctor who runs away from his mother’s attempts to arrange his marriage. He falls for Kratai’s aunt, Penlak, and tutors Kratai to get closer to her. Years later, Songklot
