To the Ancient White Dragon that was boringly waving its claws in the courtyard, other Chromatic Dragons showed mocking smiles. Those Vampires with that kind of pedigree must all be at the top, accompanying their blood ancestor! If the Vampire's ancestor dies, the offspring below wouldn't survive either.
So they must fight desperately alongside the Duchess.
The castle walls are quite thick, with special materials sandwiched in between, which can slow down a lot of Bahamut's sonic spells... Although the main target of the Platinum Dragon God is the battlefield above, they are not completely unaffected.
Arausato must have gone mad with frustration from gaining nothing, to go to the courtyard where the sound is even scarier!
