They were childhood sweethearts. They liked each other and felt each other's love. They thought it would go on like this. But he was taken away by God. Since the person in her heart was gone and she was 17 years old, no one could really enter her heart. Even if she smiled in front of others, she was sobbing inside. She was always not understood. The unspeakable loneliness was destined to haunt her after he left. People always say that God will open a window for you when he closes a door. But it has nothing to do with her. Her unhappiness seems to have left no window of relief for her. What will she do...