He lost his parents when he was young and joined the gang for his sister - Gao Yefei
She is as smart as ice and snow, and she doesn't want her brother to join the gang for him - Gao Yeyu
PS: If you think it is very similar to □□'s family law, it's because I imitated it. If you think it's not good, please give me some advice, because this is my first time writing.