The female lead's mother suddenly falls seriously ill and is hospitalized, requiring a large amount of medical expenses. To save her mother, the female lead decides to sell her eggs to raise money. The male lead sees her doing this and mistakenly thinks she's doing it out of greed, so he sleeps with her out of charity. Afterwards, the male lead believes that he is sterile and cursed, thinking he won't live past 30. He plans to transfer his property to his nephew. Unexpectedly, the female lead becomes pregnant with his child - and it's quadruplets. In order to afford child support, the female lead starts working at a hotel. It just so happens that the hotel is where the male lead's property transfer ceremony is being held. She also discovers that the male lead's nephew is her ex-boyfriend, who cheated on her. Upon learning about her pregnancy, the ex-boyfriend publicly attacks her pregnant belly. Meanwhile, as the male lead is about to sign the property transfer, he learns that the female lead is pregnant and is being bullied...