Eric, who appeared in the jewelry robbery, is an impostor. Fake He Hong, code name M, whose real name is Qin Nianchu, is one of the core suspects in the case of human trafficking in beauty salons. She fell to her death in episode 17.

According to the plot, Qin Nianchu is not a ruthless villain. She should be tired of the dirty activities of human trafficking in the past and want to live an ordinary life. She is actually a bad person.

Qin Nianchu was once a trafficked person. She was originally a victim, but because of her outstanding ability, she was absorbed by the criminal group and gradually became one of the core figures of the whole criminal group. So Qin Nianchu lost his nature and changed from a victim to a cruel criminal.