Dinari Igwe explained a little bit about the genetics of dragons, they were tyrannical beings so most hybrids died in the second growth phase, which makes Emery's case special. However, Emperor Ade will not allow examinations of Emery's body for this research purpose, unless Emery himself allows it.
However, Emery was a little lazy to deal with all this, plus he didn't know whether or not to reveal Mu Liang's secret. He himself didn't know what the miracle cure was, but he knew he shouldn't belong to this universe.
Only for some reason Emery didn't know about, he had incredibly favorable feelings for Mu Liang, so he would wait to talk to the half-elf prince about whether or not he should keep the miracle remedy a secret.
"Now I understand, if it really is a dragon it will be difficult for the Zerg Diablos genes to come out winners," Bae Dong said finally understanding the reason for Emperor Ade's fear of revealing his destined partner.