The entire Secret Realm obviously did not consist only of Zhao Kuo and the Ghost Order who was instantly defeated by Su Youyi; they were merely stationed there to ambush as soon as they detected someone was about to enter the realm.
They were aware that the monks from the Zen school had already sent signals for help to the outside world, while the Abyss simply did not care about their life or death; thus, it was clear who was entering the Secret Realm now.
Since it wasn't an ally, to them, whoever came, it was all the same—it was a matter of you die or I die.
However, what Zhao Kuo didn't expect at all was that among the people who came to support were two monstrously powerful Cultivators.
They had seen and killed many young talents before, but never had they encountered young Cultivators who were so overwhelmingly powerful and terrifying to the point of despair.
