Two strangers meet online and start talking to each other for months and ended up falling in love but later the boy found out that he has a heart disease and that he has less than 15 years left to live so he started avoiding the girl so that he can prevent her from falling even deeper in love with him because their happiness would be bound to be short-lived and that would cause the girl nothing but a great heart break. They only saw each other once and that was when their relationship was made official. The girl started feeling like he was avoiding her because she did something wrong but that was not it, he was really in love with her, it actually pained him a lot trying to avoid her but it just had to be done. But eventually, he couldn't take it anymore, so he decided to tell her the truth.