Dwarf

A dwarf (ドワーフ) is a member of an ancient race that lived alongside the elves and humans.

Overview
Dwarves are human-like in appearance but short in stature. They are known for having special magic skills.

Trivia

 * In the official English translation of the conversation between Asta and his devil, the devil calls Asta "a dwarf". However, the devil uses the term kobito (小人), which is different from the one later used for the race of dwarves.