There was a reason Yamahara was captured alongside Brangara by Inala. It was to create a hostage situation.
After all, if Yamahara wasn't there, then upon seeing that his situation was perilous, Brangara would have committed suicide. There was zero reason to be captured by the enemy and be subjected to humiliation.
However, his precious son was also here, which meant that irrespective of how bad the situation got, Brangara had to create a way of survival for his son, which made his situation extremely irritating. And the fact that further enhanced the irritation was none other than the individual before him, acting nonchalant, and completely out of character.
"Are you truly Resha?" Brangara returned to human form and glared at the individual before him.