Coming from the Void, without a true name, yet possessing a mimicry Talent so powerful as to be unreasonable, Yingdila. Although never spoken, this creature of unknown origin is precisely the existence that Muria fears the most.
Having the ability to swallow the Talents of any creature whole, and even to further enhance them on the existing basis, such a capability is far too overpowered, and Muria can't help but feel that such an ability is utterly irrational; it's beyond what Talent can explain.
In other words, the Egg of Void that hatched Yingdila, which was picked up by Muria's grandfather Akmonde from the Void, possesses an extraordinary origin or background.
As a being who survived until the end of the World Community's unification war, Akmonde obviously didn't care about the extraordinary origin of the egg he had casually picked up from the Void and gave it to his grandson as a gift.
