Back then, the Human Emperor could have easily killed him.
After being killed, he could perhaps only slowly resurrect elsewhere using Fourth Grade Blood.
Thus, meeting the Human Emperor was an adventure for him, yet a risk he had to take.
Fortunately, after the meeting, he learned one thing: at least on the surface, the Human Emperor's will was still his own, still the same lonely, ugly child.
He silently wished well for that child, but he could do no more, for he wouldn't easily approach a volatile power that could kill him, even if the power's owner held fervent familial feelings for him.
Clearly, the owner of this power shared the same concerns, so they only sat down, with faces that weren't their own, drank three jars of wine, and then parted ways.
The Human Emperor found his answers, learned his parents were alive, and gained the conviction he sought. With the Human Emperor's intelligence, he likely already glimpsed the truth from the clues of the past.
