A psychological apparition that grant its wielders extraordinary abilities.

Alters are ranked in Categories based on their capabilities:

• Category 0: Normal human beings. No enhancements or abilities.
• Category 1: Enhanced mental capabilities and physical prowess.
• Category 2: Observable presence of special abilities. Unable to project psychological construct.
• Category 3: Observable presence of psychological construct. Unresponsive outside of basic instructions from wielder.
• Category 4: Complete cognitive control of psychological construct.
• Spoiler

  Category 5: Observation of wielder's psychological construct is possible by those who don't have one and by electronic devices. Psychological constructs also posses a form of sentience outside of their wielder's.

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Alter Enhancement and General Instructional School

A military-subsidized school protected by a secluded military base in the middle of an unknown forest. 

AEGIS teaches standard academic curriculum to all of its students on top of honing their abilities. This institution possesses top of the line equipment to monitor and develop a student's Alters and their abilities.