Cinderella of the Winter Night: The Billionaire's True Bride

40 episodes

Female villain drugs male lead. Heroine enters his room by mistake, one-night stand, leaves a glove. Villain lies it was the male villain; heroine gets engaged to him. She catches them cheating, gives up. Hero seeks "that night's woman"; female villain fakes it with the glove. He senses something off—the real woman is treated as a servant. Pity becomes love; he breaks the engagement to protect her, not knowing the child is his. Then the other glove matches: she's the one, the child is his.