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Language:
English
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Published:
2026-02-15
Updated:
2026-07-22
Words:
9,390
Chapters:
31/?
Comments:
3
Kudos:
9
Bookmarks:
2
Hits:
260

HallucinXation’s Quirk Science!

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Summary:

My quirk science originally for my fic, Someone I Once (Thought I) Knew ᓚᘏᗢ*
*No longer connected! Do not need to read both to understand!

Anyone can use my quirk science in their own fics as long as they credit me with the idea. I would love to read the fics that use them!
I made all of this up with a few exceptions, but I'll give credit/co-author when they helped or made an entry

FUCK AI. DO NOT FEED MY WORK INTO AI

Includes anime/manga spoilers and head canons! (Obviously) Some info may contradict canon, please let me know if this is the case!

Feel free to leave comments! I would love feedback! This is supposed to look and sound professional, but easy to understand! If something doesn’t make sense let me know and I’ll explain and edit it to make it simpler/more sense!

Table of Contents - Chapter 1
Formatting - Chapter 2
Concepts: Chapter 3-11
Character quirks: Chapter 12-24*
Theories: Chapter 25 -__
*Tagged characters are done

Notes:

Feel free to leave comments! I would love feedback! This is supposed to look and sound professional, but easy to understand! If something doesn’t make sense let me know and I’ll explain and edit it to make it simpler/more sense!

Chapter 1: Table of Contents

Chapter by

Summary:

I recommend reading all the concepts first before reading any character entries.
I would also recommend reading Toga, Higashi, and Monoma's entries as they are sometimes referenced in other entries.
(Toga & Higashi for transformation quirks/cambiase; Monoma for Chisaki/Shigaraki)
This will help achieve a greatest understanding
Ultimately up to yall though
This is just a warning that entries are interconnected, so if you don't understand something, it might be because you didn't read the chapter something was originally introduced in

Notes:

Linked chapters are complete and published. Unlinked are planned, but not yet on the archive

Chapter Text

Font Formatting: Ch. 2
Concepts: Ch. 3-Ch. 11
Character Quirks: 12-24*
Theories: 25-__

*Theories may be pushed back when new characters are done

Concepts:
Chapter 3 - Quirk Factors/Plus Alpha Mechanisms
Chapter 4 - Transformation Quirks
Chapter 5 - Imperium Metartum
Chapter 6 - Quirk Types
Chapter 7 - Quirkless Evolution
Chapter 8 - Quirked vs Quirkless vs Irl Humans
Chapter 9 - Prequirk + Beginning of Quirk Era Timeline
Chapter 10 - Quirk Awakenings
Chapter 11 - Pocket Dimensions

Characters (May not be released in order):
Chapter 12 - Toga Himiko's quirk, Transform
Chapter 13 - My SIOTIK OC, Higashi Hikaru
Chapter 14 - Shouji Mezou's quirk, Dupli-Arms
Chapter 15 - Bakugou Katsuki’s quirk, Explosion
Chapter 16 - Yaoyorozu Momo’s quirk, Creation
Chapter 17 - Tamaki Amajiki/Suneater’s quirk, Manifest
Chapter 18 - Shirakumo Oboro's quirk, Cloud
Chapter 19 - Mandalay's quirk, Telepath
Chapter 20 - Sir Nighteye’s quirk, Foresight
Chapter 21 - Monoma Neito’s quirk, Copy
Chapter 22 - Overhaul/Chisaki Kai’s quirk Overhaul & Shigaraki Tomura’s quirk, Decay
Chapter 23 - Aizawa Shouta
Chapter 24 - Mt Lady

Theories:
Chapter 25 - One For All (Headcanon)
Chapter 26 - Vigilantes Theory
Chapter 27 - Tsukauchi’s potential quirk in canon:
Chapter 28 - Nedzu’s Origin
Chapter 29 - Quirk-Erasing Bullet (Perm Variant) Effect on Heteromorphs
Chapter 30 - How Midoriya got last on the Quirk Apprehension Test
Chapter 31 - Late blooming Sentient Quirks
Chapter 32 - How Quirks Could Have Come To Be
Chapter 33 - Star’s Theory - How Heteromorphs are born
Chapter 34 -
Chapter ?? -