(Rental-apartment life + cohabitation + an amnesiac, cold-hearted tycoon turns into an anxious, clingy puppy)
Wen Siyan sees Fu Jingyan again, the boy she wanted to marry since she was three, twenty years after she went missing.
By then, he's already engaged to her "younger sister."
While Wen Siyan was gone for twenty years, her adopted sister filled the place that had once been hers in the family. Even her childhood engagement to Fu Jingyan was given to her sister. Her family says they owe Wen Siyan, but they keep her at arm's length, afraid she'll try to steal Fu Jingyan, now a leading figure in the business world.
Disappointed, she moves back to the small fishing village where she grew up, only to stumble upon Fu Jingyan, who has lost all his memories.
After failing to get him back to his wealthy family, Wen Siyan starts thinking she could use Fu Jingyan to get revenge on her fake heiress sister's family. She'll even get a handsome reward out of it someday, so she keeps him by her side.
But she never expected that losing his memory could change someone's personality. The man outsiders see as cruel and merciless has become a completely different person. Not only does he adapt to picking her up from work every day and buying groceries to cook for her, he also grows anxious and clingy, afraid she'll abandon him. He insists that she's his true fiancée and wants nothing more than to give her a better life...