Not only Kahn but all the other generals and Omega had a somber expression at this moment. Because if Kahn's assumptions were right… they were fighting against someone they didn't know anything about even at this stage when the entire Verlassen fiefdom was controlled by them.
And that too after Kahn took care of 3 of the legendary rank monsters himself.
As if a high-ranked being or a creature that was many times stronger than even the legendary rank monster or even legitimate saints was intentionally targeting these regions by controlling them.
Nevertheless, the fact remained that they were sitting ducks while someone was aiming to cause a bloodbath across the fiefdom.
Since the legendary monsters were always the cause of the annual monster tide… Kahn getting rid of them one by one must have thwarted someone's plans so bad that they were forced to act and hence sent these creatures to invade and massacre millions of inhabitants of Verlassen.