Emperor Dragons primarily ate serpents. They only existed for a short time within the starry sky of the Vast Expanse, less than a thousand years. After that, the entire race vanished.
Because of that, none of the living beings that currently existed would even recognize what an Emperor Dragon was. Not even the old lizard had ever seen one.
People had seen dragons before, but not a dragon like this, with the crown of an Emperor, nine claws, and pitch-black scales. It was ferocious to the extreme.
However, the meaning of the character in the Dragon's name actually wasn't emperor. It was
A Leech Dragon!
It had the normal whiskers of a dragon, but when it opened its mouth, what emerged was a razor-sharp, blood-sucking mouthpiece like that of a mosquito. Its entire appearance was shocking to the extreme.