Amberser did not usually make it a habit to chat with his creations.
The little creatures he kept at home were almost entirely left to fend for themselves, after all, undead do not require feeding, and Mercury Avatars absorbed metal scraps on their own, requiring no care from Amberser.
When they were not in use, Amberser let them grow amidst their own clamor and ruckus.
As for those Alien Skeletons used for labor, Amberser cared even less for them; should they break, so be it, since the undead lacked any sort of emotions.
However, Melina seemed a bit different; her emotions were too rich, exceeding what should be expected of the undead.
"Could it be that different materials used resulted in a divergence of the soul?"
Amberser thought this "accident" held significant research value and he would willingly provide this "after-sales service," even if it were not a request from Withered Rose.
