Many families, whether ancient martial arts families or ordinary commercial families, had been subverted by the Twelve Zodiacs Organization.
Although the Pantheon eventually eliminated all of these families, it still served as a wake-up call for Chu Tianhe: a great many families in Great Xia Country were still quite willing to act as traitors to their country.
Moreover, judging by various clues, the Twelve Zodiacs Organization was not relying solely on Wu Zhenghao as a pawn.
Chapter 535