Ponwalai, Yodthian's sister, was Prakob's mistress, accepting his love and money while secretly involved with another man. When Prakob discovered the truth, he died of a heart attack, leaving much of his wealth to Ponwalai. His son, Noppharuj, is furious and seeks revenge on both sisters. Consumed by guilt over her sister’s betrayal, Yodthian quietly accepts Noppharuj’s wrath.