Aura

Aura (オーラ) is a particular force produced within all living beings, usually leaking out their bodies in varying amounts.

Properties
It is a malleable substance with many practical uses. In combat, it's basic uses is to enhance the body and equipments to amplify the effect of any physical action from power, speed and durability depending on the quality and quantity of their aura, resulting in superhuman feats without the aid of Magic or Skills. It prominently used to perform Arts like Battlewill to create powerfull physical attacks and effects that resembles magic.

By observing the potency of a creature's aura, their strength or danger level can be inferred to an extent. Many security constructs within human settlements are built to react to specific auras, usually associated with monsters. This suggests there are certain qualities not all auras share and can be attributed to certain groups of creatures.

Types of Aura

 * Mystic Ki (妖気) or Mystical Aura : Produced by Monsters or any Magical races.
 * Fighting Ki (闘気) or Fighting Spirit: Produced by Humans and Demi-Humans.
 * Dragon Ki (竜気) or Draconic Aura: Produced by True Dragon and Dragon races.
 * Holy Ki (聖気) or Holy Aura: Produced by Holy beings.
 * Spirit Ki (霊気) or Spirit Aura: Produced by pure Elementals.
 * Divine Ki (神気) or Divine Aura: Produced by Divine beings.