Damn!
The wave of probing fluctuation was just too sensitive! The bogus borderline breath control method, which never failed, actually could not escape from the adversary's detection. It caused Chen Mu an enormous headache. Concealment was his greatest advantage, and almost all of his battle tactics branched off from that point. Once it was removed, his situation would be rather far from good.
Such was precisely the disadvantage of extreme tactics. Chen Mu hadn't been aware of how extreme his own tactics were before. He realized that when he could no longer keep himself concealed, he lacked other means of counterattacking and was completely caught in a false position.