Furthermore, as they slapped their faces, they were also admitting their wrongdoings to Chu Feng. From this, one could tell that they truly feared Chu Feng. After all, this was a place where one’s strength determined their status. Earlier, they experienced Chu Feng’s strength for themselves; it was a strength that was out of reach for them.
Moreover, they were truly in the wrong. If Chu Feng was to really report this matter to a Punishment Elder, they would likely receive an even more tragic punishment, and might even be driven out of the Cyanwood Mountain.2
Compared to that, slapping themselves was nothing major. Even if they were to slap their faces open with wounds, they would be willing to do that. If they want to blame someone, then they could only blame themselves for being unlucky and encountering a malignant star like Chu Feng.