Shang's words actually made perfect sense— that was, if they didn't happen to know Noir's character well.
Alas, he did not have the slightest idea that they had entered several Cycles together through sheer coincidence, fought side by side in many perilous battles, and thus they could tell that Noir wasn't the type to lie about something like this. Not to mention, Shen Nianzu had even once invited the man to join his organization – though he was met with refusal in the end – and that spoke volume about what kind of person Noir was.
Which was why, when Shang spoke those words, they subconsciously furrowed their brows.
How to describe it? It was like hearing someone else bad-mouthing your friend right in front of your face.