Dragon

Dragons (龍属) are one of the strongest races that exist in the world. They generally reside at the top of the Canaat Mountains.

Appearance
They are a reptilian race. Their bodies are covered in scales, and they have wings, claws, and fangs.

Background
The origin of dragons could be traced back to the Spirit Dragon gifted to Milim by her father, Star King Dragon Veldanava. Unlike True Dragons, regular dragons are material lifeforms at birth. Although there's a resemblance between the two, the latter are in essence closer to dinosaurs or reptiles. After the Spirit Dragon died and became a Chaos Dragon, its essence had spread to areas high in magicule concentration, resulting in the birth of Lesser Dragons.

Dragon Types
Lesser Dragons (レッサードラゴン) are the most common variant of dragons. They hold the weakest amount of the Spirit Dragon's essence.

Known Lesser Dragons:
 * Dragonewts
 * Lizardmen
 * Wyvern

Arch Dragons (上位龍族) are higher level dragons that have inherited more of the Spirit Dragon's essence than Lesser Dragons. At this stage, they are generally aligned with one of the four elemental attributes of Earth, Water, Fire, and Wind. There are some exceptions like the Sky Dragon Rimuru encountered in Ingrassia, which apparently had been the result of a failed evolution into a Wind Dragon. As dragons don't associate with the sky attribute unlike elemental spirits, such rare offshoots are considered weak. Arch Dragons typically exhibit intelligence on par with farm animals.

Known Arch Dragons:
 * Sky Dragon
 * Zombie Dragon

Dragon Kings (竜王属) are the most powerful among the dragon race and are closer to semi-spiritual lifeforms. This evolution is attained only after spending several centuries as an Arch Dragon. They boast intelligence on par with humans, and are able to tap into some of the original Spirit Dragon's powers. Additionally, they also enjoy an extended lifespan and stand at the peak of elemental dragons, with enough power to approach demon lord class. They are hard to subdue even for the likes of Milim, which is why it's preferred to capture them while they are still Arch Dragons on the cusp of evolution, as it's easier to nurture them.

Known Dragon Kings:
 * Zephyrus
 * Euros
 * Notos
 * Boreas

Spirit Dragon (精霊竜) is the original dragon and the progenitor of the dragon race. It is a direct descendant of Veldanava. Unlike its inferior dragon kin, it is a fully spiritual lifeform hosting a considerable amount of power. After the Chaos Dragon was consumed by Rimuru, its soul and body was reformed, allowing it to be reborn. It now lives with Milim.

Other

 * Charybdis - Its origins differ from other dragons, being that it is a direct offshoot born out of Veldora's aura. Despite its abnormal appearance, it is classified a dragon.