The vague fluctuations were almost insensible. Like ripples on water, they blanketed the entire region. They were used by the scanning category of cards. There wasn't just one type among the complex fluctuations; there were five. It was evident from that how tight their detection was.
Although Chen Mu's bogus borderline breath control method didn't have the unparalleled power of the true breath control method, it was quite good at stopping his breath. Beneath those five fluctuations, each with different characteristics, he was shuttling around like a fish, swimming with ease without making a splash.
The ever ghost-like Wei-ah stuck close to his side. Using no apparent tricks, he could still remain beneath the scanning wave band without making any waves. Chen Mu had asked Wei-ah about that, but Wei-ah never gave him an explanation.