Youkai is a blanket term for supernatural beings formed human faith. This includes spirits, gods, monsters, and cryptids.
Class
Youkai are assigned a class depending on their performance in standardized tests of anthrotypicality and acuity. A subject's anthrotypicality is measured first in an Anthrotypical Physicality Exam (APE) and ranked A, B, C, or D.
- A - Anthrotypical: compatible with the human genome.
- B - Anthrodivergent: appears humanoid, incompatible with the human genome.
- C - Physioformed: appears non-humanoid, compatible with known laws of physics.
- D - Aphysioformed: appears non-humanoid, incompatible with known laws of physics.
Next, a subject's acuity is measured in a Maturity and Mental Acuity Test (MaMAT). The results are compared to an adult human, and assigned a rank 1-3.
- 1 - Mature, as an adult human.
- 2 - Immature, as an adolescent human.
- 3 - Premature, as a infant human.
- 4 - Presapient, as a non-human animal.