Please recommend an urban novel with the male protagonist surnamed Long.

I'm looking for an urban novel. The male protagonist's surname is Long. She was taken away by someone. When she grew up, she found her own home. Her parents were in business. When she came home, there was a godsister at home. There was a police officer in the middle of the female lead. After looking at her for a long time, she couldn't remember her name. Please help.