In this world, dragons and wyverns were both quite famous creatures.
Dragons survived only in small numbers in South America's Chaos Domain and the interior of the Dark Continent. Some even believed they had gone extinct. Their intelligence could surpass that of humans, and they stood on the boundary between demons and magical beasts. They were known for combat power surpassing that of the Old Generation vampires, making them an exceedingly powerful race.
Wyverns, on the other hand, were a lower-order race of dragons, a type of magical beast resembling dragons. They possessed combat power that ranked among the very best of all races and were renowned for their ferocity. During the Middle Ages, they had run rampant throughout the world. Due to environmental destruction reducing their habitats, as well as excessive human hunting, their numbers had also declined to the brink of extinction in recent years. Generally speaking, they could not possibly survive anywhere near human settlements.
They had once been used as tools of war. Their combat power was unquestionably the strongest among aerial magical beasts. Even though they were inferior to true dragons in strength, their status was still different from that of other magical beasts. Even a highly skilled Demon Slayer would be unlikely to win against one in a one-on-one battle.
For example, a Sword-Miko like Yukina would ordinarily have no chance against a wyvern without the Seven Style Assault Demon Subduing Machine Gun in hand.
Therefore, when Luo Zhen summoned a wyvern, Yukina had been extremely surprised. Although she had once seen Luo Zhen summon a wyvern-shaped Familiar aboard Vatra's luxury cruise ship, Luo Zhen had not transformed the wyvern into a Familiar this time. Instead, he had summoned it directly as a Familiar, allowing it to exist as a living creature. Naturally, this