Hating him for three years, she made every attempt to make things difficult for him and always believed that he was her father's illegitimate son. It was not until the truth was revealed that she realized that he was just the son of an old friend whom her mother entrusted her to take in before her death. He promised softly that if you hate me for three years, I will spend the rest of my life paying you back. Just as the love was secretly growing, a terminal illness came quietly. She ruthlessly cut off all ties and disappeared quietly. He searched hard, and finally only found a piece of medical diagnosis that she had deliberately hidden. From then on, the world remained the same, and she was no longer there for the rest of his life.