Olivia, in order to raise money for her mother's medical expenses, married Andrew, who was rumored to be the black sheep and a troublemaker of his family, in place of her sister Clara. However, to her surprise, Andrew turned out to be a billionaire hiding his true identity. Clara, unwilling to accept this, along with Olivia's ex-boyfriend and others, tried various ways to bring Olivia down, while Andrew secretly helped Olivia from the shadows.