Demon's Shadow

Shadow demons are a human's shadow which manifest as a demon based off of the person's emotions and other factors. 

The human will then awaken their shadow demon and will therefore create a connection to the demon realm through their shadow demon which can grow stronger the more energy it's master assimilates into their body.

Energy is the power of a beast all put into one form so when someone absorbs a beasts power they have a small chance of getting what the beast they killed had and energy will later be converted into magic.

The Demons in the demon realm are different from shadow demons.

The system is a type of communication device the humans and demons use to transport into the Aquinox Realm where mindless beasts roam but not all of them are mindless.

The evolution of a shadow demon is different from the assimilation of the shadow demon.

Evolution:Rank of a shadow demon- Low-rank > Medium-rank >High rank > Superior-rank > Nigh-Supreme-rank > Supreme rank. 

Assimilation:Level of a shadow demon- 0-10%(infant) > 11-20%(child) > 21-50%(teen) > 51-70%(adult) > 71-81%(inferior B) >81-90% (nigh-superior) > 92-100%(Superior)

When referring to one potential their Evolution is always said first and then their Assimilation is said second.

Magic is the advanced form of energy which takes on an elemental or non-elemental form and can deify the laws of the world if a person possesses enough of an affinity with their given magic.