[The Pretender]
Comparing with Ning Jing, Wu Huai'an is ugly.
Objectively speaking, he is not ugly, but his deliberately disguised gentleness and sophistication come off as pretentious to Su Liang, who had lived two lifetimes.
Actually, Wu Huai'an performs well, but from beginning to end, his identity and actions seem inconsistent in Su Liang's eyes.
Mu Fei had already grasped the exact clues about Wu Yun's involvement in the iron mine smuggling case, casting a heavy suspicion of treacherous profiteering on the loyal veteran.
After Su Liang was kidnapped by Wu Yun, she believed more in Mu Fei's judgment. Wu Yun is far from righteous. It is shameless to hurt others just because he's worried about his son.
Moreover, Su Liang could tell from Wu Huai'an's words that even he knew Ning Jing had contact with Mu Fei. It is obvious that while Mu Fei was investigating Wu's father and son, they were also keeping an eye on him, so they must know that Mu Fei knew Su Liang.