Su Wan started online dating hoping to make some money, but after six months with nothing to show for it, she turned her attention to Gu Yushen of the powerful Gu family and deliberately set him up, leading to one reckless night together. The cold and ruthless young master Gu is none other than the online boyfriend who tenderly calls her "baby"! Afraid her secret will be exposed, Su Wan rushes to break up with him, cruelly telling him that he isn't good enough for her. Gu Yushen vows that he will never get back together with her, but nobody knows that in his twenty-six years, every first experience he ever had was with Su Wan. In just three short days, the arrogant heir goes from cold indifference and gritted teeth to humbly begging her to stay. The moment his messages are rejected with a red exclamation mark, the favored son of heaven completely loses his mind.