Bruce was a bit stunned, for a moment he thought those words didn't belong to a kid, but an adult expressing sincere gratitude, but then he smiled, shaking his head, and ruffled the hair of Ainz, before speaking with a joyous voice.
"Don't thank me, kid, you worked hard for it. If the inner circle won't appreciate your hard work, I will."
Bruce said, as he looked at Ainz, ever since that person came to him, he had been asking himself questions, but seeing how much the kid was working so hard and improving, he thought his decision was the best. At this moment, the inner conflict that he had was unbeknownst to him resolved.
'If that person wouldn't appreciate you, so be it. But I will do my best to do things right, it's only fair to be rewarded, when you do something right.'