He was a stranger until then he become the fan of a lawyer you hated. He'll be studying law because his mother wanted to and he's a fan. But then everything changed. He knew that that lawyer was his father. He does something to save his father's image because you have some evidence of the lawyer's delinquent's. But he almost killed you, not literally. You met an accident because of him, you didn't know all along.
He never prayed until that day, he prayed "Let her live. Please. I will give up all my happiness. You can let me die. Just let her live."You survived that accident. He quit law school because he knew that his father;the lawyer you hated became the lawyer of the one who killed your father. He sacrificed. He didn't tell the lawyer that he is his son.
And years after, he is dying. He got only months to live and he wanted to spend it with you. You're new at this. You didn't know if he's telling you the truth or not. But you let him. Because you love him all along. *But he died saying he love's you the first time he saw you.