Xia Changqing and Xia Yiqing grew up in an orphanage. When Xia Changqing discovered that the director of the orphanage molested girls one day, he decided to take his sister out of the orphanage. He found an old policeman who had always wanted him to go undercover with criminals, and made a deal with him. He said to his sister: "Don't worry, study hard, and my brother will come back to pick you up. I'm sure..."
Five years later, Xia Yiqing did not wait for the long-awaited brother, but instead waited for a note, a key, and the name Liang Weijie...
Xia Yiqing vowed to find her brother, to live and die and to see his corpse...
Intention: family, friendship, love