Yu Lingxi and Ji Qing were childhood sweethearts. They grew up wearing a pair of trousers... He and I were friends since they were fifteen years old.
When she was 15 years old, Yu Lingxi suddenly went abroad, and she stayed away for ten years.
Ten years later, Yu Lingxi was forced to return to China to get engaged, and that engagement partner was still his childhood sweetheart Ji Qing...