Ouyang Biya could not feel anything from all the monsters surrounding her and her subordinates. These monsters did not emit the slightest energy from their body or even aura. The only thing she could tell was that these monsters were stronger, far stronger than their expectation.
The information mentioned that their target had a weird summoning ability. It did mention that the ability was quite strong, but the information mentioned that the summons should not be stronger than the summoner. It made sense, and they still put their target's threat level below Clementine and Arion.
However, they were wrong; she was wrong. One monster who could literally kill anyone, from her subordinates, from faraway, so far that it would take her a few minutes to reach. She was confident that she would be able to kill this monster, but that meant she had to leave her subordinates.