The last sentence in this chapter clearly explains how the Mount Hua Sect felt when the Satanic Sect attacked them a hundred years ago, and how those people from the righteous sects abandoned them, and now the Namgung family is living in this same hell.
if chungmyung was never in mount hua sect, i can really see him doing this, like what exactly is jang ilso doing rn... but more ruthless... fortunately, he was in mount hua... uwie