ASTERS:

Tiny bits of energy called "Cosmic Matter" that have been implanted into every human's brain. Asters merge with the consciousness, and operate like a nervous system.

ICHOR:

A vein-like system that extends from the aster to other parts of the body. Asters pump signals to the Ichor, which activates the person's "Ability."

ABILITIES:

The product of Ichor's activation that enables the user to produce powers that abuse, defy, and/or alter reality itself. I quite literally hate the comparison, but think of a MHA quirk. It's different, you just have to trust me on this.

Depending on the person, a Catalyst might be required to use an ability. Catalysts are objects that are intrinsically linked to a persons Aster, acting as an "extension" of sorts. If a person that has a Catalyst is not in physical contact with it, their Ability will not activate.