Love the greatest ultimate

Natalie, who has a terminal illness, celebrates her birthday in the club through the suggestion of her friend. Fate brought her and Kian who drunkenly stole her first kiss. After some months of being pressured by his father to get married or the heritage of the company will sleep off his hands he then seeks Natalie's consent for a contract marriage with her. What will be their fates when he finds out that her days are numbered on earth? And her illness was beyond doctors’ intervention?