Psi

Psi (魂 Tamashī), also known as Psionics is a quirk type centered around mental and certain metaphysical abilities. Unlike Emitter, Transformation, and Mutation type quirks, Psi-type quirks almost exclusively take place within the mind or soul and internally experienced, sometimes making them difficult to detect.

There is scientific debate over whether or not Psi type quirks existed prior to the birth of the Luminescent Baby due to extensive paranormal claims during that era; however, there is no proof whether the abilities claimed by psychics and others were real and the same as present-day Psi and Emitter quirks.

Precognition
This subtype centers around perceiving future events before they happen, such as Preflex and Empathetic Perception. Users generally have the ability to foresee possible futures and observe what may happen.

Psionics
The largest subtype, Psionic abilities include a variety of mental powers including Quirk Vision, X-Ray Vision, Empathy, and more.

Enhancements (Mental)
Perhaps the most subtle subtype, these quirks include enhancements to regular perception (such as sight, hearing, or smell) as well as memory, intelligence, speech (think multilingual or the ability to speak to animals), and a variety of other enhancements that cannot be explained away as part of another quirk (such as the mutation quirk Hawk Eyes). Some of these quirks require DNA testing to tell them apart from natural enhancements. It's not uncommon for the more subtle of these to go unnoticed and the person to be labeled as quirkless.

Extrasensory Perception
This subtype centers around the ability to acquire information independent of known senses or previous experiences, such as Clairomancy, Clairvoyance, and Psychometry; this subtype is also known as ESP.