Demons

First mentioned in *Gal\*Gun's* Doki Doki Carnival and making their first appearance in *Gal\*Gun: Double Peace*, demons are a wide variety of powerful creatures inhabiting Hell, with most dedicated to spreading mischief and unhappiness to humans. Some are almost exactly like humans, to the point where it is possible for a child between a humanoid demon and a regular human to be conceived. Although he currently has made no appearances in the games, Hell is ruled by the Demon King (explicitly referred to as Satan in Doki Doki Carnival). Similar to angels, demons earn Dark Feathers (in contrast to Light Feathers) from working at jobs. A moderate amount of supernatural talent or power is required for demons to be visible to the human eye while they're in the human world. Similar to their angel counterparts, young demons have to undergo studies at the Demon Academy.

## Demon Academy

Students at the Demon Academy study how to be a proper demon, as well as hone their magical potential. Like their counterparts at Angel Academy, the students are unpaid for their deeds, and are instead motivated by earning academic credits. Failing students need to take a make-up exam, which requires them to fill up a stamp sheet with "mischief markers". These stamps are obtained from performing misdeeds and pranks, and are lost from good deeds. However, obtaining an excessive amount of stamps will result in the assignment's failure. There are rumors of excessively failing students becoming regular humans...

Known students of Demon Academy:

Repeated 3rd year (Gal Guardians)

## "Familiars"

These are special demons that can be summoned by another demon.

 Mr. Demon Balloon | Double Peace
    Mini Kuronas | Double Peace
Gal\*Gun 2

## Fiends

In *Gal Guardians: Demon Purge*, Fiends are particularly powerful demons that are the result of a human and a demon fusing. After a dimensional merge, some of Sakurazaki Academy's students became part of the castle's Fiends. Additionally, these Fiends retain memories of their form after death, and thus can retain their abilities even after their human host is gone.

 Al-Gi'tar | A rabbit-like fiend that is holding a concert in the castle's Ceremony Hall.
 Baphomet | A pure, intelligent demon that resides in the Library, and is capable of human speech.

## Other Demons

It is possible for a human and a demon to have a child, resulting in a half-demon. There has been only been one such case seen so far in the form of Nanako Tamasaki, who has a human mother and a powerful demon father. Her powers had been dormant until her exposure to holy water, which transformed her from an ordinary human girl to the appearance of a human-like demon. However, these powers surfacing comes with the consequence of awakening of a demon's instinct to pull pranks on others. The appearance of these demonic traits can be suppressed with magical hairclips, but the demonic instincts will still remain.

Additionally, there are other demons who live on Earth as humans, but they require an observer from either Heaven or Hell to monitor their behavior. With enough guidance, their instinct to cause mischief can be suppressed completely. In rare cases, a human can be arranged to be their observer.

*Gal Guardians: Demon Purge*
 Nanako's father
     Adult Kurona | *Gal Guardians: Demon Purge* | Unknown