C84 The old lady is su anan's mother-in-law!
After Old Lady Gu and Su Anan left, Old Man Mu returned to her own building. He gave them face and told them not to bring this matter to the police station. They did not want to listen, so she invited the police officers to the Mu Family.
During the birthday banquet, Old Man Mu had known from Su Anan's photo that Gu Mocheng and his daughter had a deep relationship. After all these years