It's not that Feng Chutang harbors any prejudice against Chu He, but having coexisted in Qingming for so long, they know each other well. An abrupt strange change is unlikely an instant enlightenment; it's most likely a heart demon, or even a case of being seized by a heart demon and having the primordial spirit replaced, which has occurred before.
Wei Yuan also found it odd, but as the Boundary Master, he once used the Boundary Power to examine Master Chu He and indeed didn't find any anomalies, so he could only conclude that the Old Daoist was incredibly fortunate and had a fortuitous encounter.
After some discussion, the two confirmed that Master Chu He had no issues, which put their minds at ease.
As for the Northern Whip, there was currently no intelligence at all, and they could only delve deeper into the war and slowly find an opportunity to hunt it down.
