To bear alone the weight of her father's gambling debts, her family's ruin, and the child growing inside her, brilliant designer Yun Jae-i cruelly pushes away the man she loves, Lee Taebin, with a heartless lie and walks away. Eight years later, Jae-i is a single mother raising her ailing son Yun Suho, while Taebin has become the cold and ruthless CEO behind Jinsung Group's rise — and he walks back into her life. Determined to have his revenge, Taebin finds himself torn between hatred and a love he cannot erase, growing dangerously obsessed with Jae-i. As eight years of misunderstanding slowly unravel and the truth of the child's paternity is finally revealed, what began as revenge is upended by regret — and a choice that could change everything.