Spirit Class

**Spirit Class** (霊階級, *Reikaikyū*?) refers to the power scaling system used to gauge the energy levels of Psychics and Demons. Strength is ranked by class: E, D, C, B, A, and S. E is the lowest and S is the highest. There are divisions to the classes as well, they can be separated into low, medium, and high tiers or simply B-, B, and B+.

## Classess

### E-Class

Energy of this level corresponds to those that possess minimal power. E-Class Demons are the weakest of all beings in Demon World. Humans who possess basic Spiritual Awareness are also at this level. Most residents of Spirit World also fall into this class.

**E-Class Demons**: The demons of this class are usually very small or close to human size with both demonic features. They can range from simple animal-type monsters found in Demon World or younger demons with little to no experience. They are particularly rare in the Demon World due to the fact that most demons born with E class power likely don't live long enough to increase their power. Often they are so weak that they disintegrate while in the presence of greater demon energy. This type of demons have almost no control over their basic instincts and behave like vicious monsters.

* Jyaki
* Boldak
* Fugaki
* Cultivated Humans

**E-Class Psychics**: Humans of this class possess the most basic level of Spirit Energy. They possess average spiritual faculties for any human who can sense the presence of spirits and are novice practitioners of applying their Spirit Energy into techniques.

* Musashi
* Kibano
* Kuroda

### D-Class

Energy of this level corresponds to those with a below-average amount of power. D-Class Demons are usually monstrous beings more powerful than a normal human, but much weaker than the average demon. Humans with heightened spiritual potential are generally of this level.

**D-Class Demons**: Demons of this class generally have a monstrous appearance and are much larger than humans. Their skills are usually physical-based and usually battle with straightforward overconfidence against smaller humans. Compared to E-Class, demons of this level are much more intelligent and possess a greater sense of awareness and control of their instincts. They can easily overpower a large group of humans or demons from a lower class, but their power still pales in comparison to an average being from the Demon World.

Despite the majority of D-Class demons being recognized as weak, some possess more potential to move up the ranks than E-Class demons. (i.e. Gouki) Others are demons who have become weaker due to an incident and are dropped down to this class while they recuperate their strength over time. (i.e. Hiei & Kurama)

* Gouki (D-)
* Genbu (D+)
* Apparition Gang (D)

**D-Class Psychics**: Humans of this class possess a higher level of Spirit Energy compared to a normal human. They have an enhanced sense of Spiritual Awareness and is an average practitioner of Spiritual Techniques. They generally possess power only great enough to overpower weak psychics or normal humans. D-Class humans generally have a high potential to improve their abilities.

* Shorin (D-)
* Kazemaru (D-)

### C-Class

Energy of this level corresponds to those with an average amount of power. C-Class Demons are the most common demons from the demon world. Psychics who have received general training to use their Spirit Energy are of this level.

**C-Class Demons**: Demons of this class are considered to be of average strength when compared to species of the Demon World. They are far more powerful than any being of a lower class, presenting a city-level destruction threat with their raw power. Unlike low-level demons, C-Class Demons are generally more human-like in both their appearance and personality. They have a human-sized frame instead of a monstrous appearance and have a more unique sense of will than weaker demons. They have much greater control of their Demon Energy and can utilize a variety of dark techniques. They have great potential to rise the ranks and often ascend to upper classes, but base C-Class power pales in comparison even low-tier B-Class.

**C-Class Psychics**: Humans with this level of power are considered to have above-average spiritual power. They have high Spiritual Awareness and fine control over their Spirit Energy. Psychics of this level have generally received training from someone stronger to better improve their spiritual power with more finesse and control. They generally have the ability to master a technique powerful enough to vanquish demons of an equal or lower level. C-Class Psychics are likely in a transitional phase between being a novice and becoming a master.