The look that the Nekomata was giving the two High Priests promised violence. It was very proud of the fact that it had learned a new skill, and the fact that it could activate it after one day was extremely impressive in the Demon Cat's mind.
The new clerics took years to start using a new skill, and it had done so in a single hour. But these two still had the nerve to look down on its learning rate? If they weren't the ones who fed it, the cat was seriously considering clawing their eyes out to show them just how impressive its new skill could be.