As Azrael listened to the conversation between Ming and Ron, especially the part where they spoke about making people bleed like livestock to open some kind of door, and mentioned a lunatic, his expression grew serious as he realized the situation was far more dangerous than he had initially imagined.
Before accepting the mission, Mira had given Azrael detailed information about the Transcendent Organization, explaining that there were only three epic-level warriors within this underground group.
But after overhearing Ming and Ron, Azrael realized there was something he had completely overlooked.
Initially, he had assumed that since all three epic-level warriors of the Transcendent Organization had already been dealt with, the people inside the ruins would mostly be of warrior apprentices or, at best, class level. Yet, he had failed to consider that Mira's information only covered those who operated outside the ruins.