The rogue hero later came out of Musha. Good guys and bad guys?

Musha should be a good person, because she is not human in these cases. She's Interpol. She came here to handle another case and met Chen and Wu. If the forensic doctor who guesses the blue surname most now is undercover, then Musha should be a good man, otherwise no one will stand in a neutral position and see the real undercover.