Cuatrillizos con el Tío de mi Ex

"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.