She and he were childhood sweethearts. He left his hometown when she was ten years old. The two of them could only see each other a few times a year. In the third year, a sudden change occurred, and she also left her hometown with her mother. Three years later, the two met again, and they fell in love with each other. However, after she followed him home, she was teased by fate again. She and he became brother and sister, and their love was entangled with where to go.