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Language:
English
Series:
Part 2 of Life blood
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Published:
2025-10-22
Updated:
2026-05-11
Words:
20,266
Chapters:
8/?
Kudos:
9
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Notes for a neuron

Summary:

A purely supplementary piece for my fic "Mimicry of a neuron", where I post art I've made for it all in one place, along with some additional notes for things like OCs (and maybe some extra stuff)

Spoilers ahead!

Chapter 1: QUIRK REGISTRY CERTIFICATE(s)

Notes:

Covers chapters 1-5, in addition to chapter 19

Chapter Text

Chapter 1: Diagnosis

A digital render of an official government document. The text reads “Quirk registry certificate. Quirks and Villains registration act 2134. Shizouka Prefecture. Name: Midoriya Izuku. Date of Birth: 15 July 2210. Blood Type: O. Sex: Male. Maternal Quirk: Animate. Paternal Quirk: Diagnostic. Quirk: Liquid Scab. Type: Emitter. Description: Allows the user to self heal injuries with a blood like film, secreted from the from the users skin. The healing capabilities of Liquid Scab is currently unknown, currently only healing small injuries in a mater of seconds. The user has shown no ability to use his quirk on others. Notes: Unclear what quirk is consisted of, but has a similar colour to fresh blood. Addendums: —” At there footer of the page is fine print certifying the document and a warning not to alter the certificate, and a stamp signature.

QUIRK REGISTRY CERTIFICATE
QUIRKS AND VILLAINS REGISTRATION ACT 2134
SHIZUOKA PREFECTURE

REGISTRATION NUMBER
10485034/2216

Name: Midoriya Izuku
Date of Birth: 15 July 2210
Blood Type: O
Sex: Male

Maternal Quirk: Animate
Paternal Quirk: Diagnostic

Quirk: Liquid Scab
Type: Emitter
Description: Allows the user to self heal injuries with a blood like film, secreted from the from the users skin. The healing capabilities of Liquid Scab is currently unknown, currently only healing small injuries in a mater of seconds. The user has shown no ability to use his quirk on others.

Notes: Unclear what quirk is consisted of, but has a similar colour to fresh blood.

Addendums: —

I certify that this is a true copy of particulars recorded in the
Registry of Quirks and Villains in the Shizuoka prefecture Japan.

Hanako Yamada
Mayor of Musutafu

REGISTRY OF QUIRKS AND VILLAINS
DATE 18/2/2216

Any alteration of the substance of this certificate will render the document valueless. Any persons attempting an alliteration is liable to prosecution.

Chapter 2: So many doctor trips

A digital render of an official government document. The text reads “Quirk registry certificate. Quirks and Villains registration act 2134. Shizouka Prefecture. Name: Midoriya Izuku. Date of Birth: 15 July 2210. Blood Type: O. Sex: Male. Maternal Quirk: Animate. Paternal Quirk: Diagnostic. Quirk: Living Slime. Type: Emitter. Description: Grants the user control over a slime consisting of highly adaptable cells capable of movement, digestion and other specialised functions. These cells are capable of interfacing with cells of the user to repair damage, and to manifest tentacle-like appendages to defend the user. Notes: Minimal control, current theory suggests this is the result of cells developing something akin to a nervous system, leading to instinctual activations. Quirk counselling has been recommended. Addendums: Updated from Liquid Scab. [See attached document for additional information]” At there footer of the page is fine print certifying the document and a warning not to alter the certificate, and a stamp signature.

QUIRK REGISTRY CERTIFICATE
QUIRKS AND VILLAINS REGISTRATION ACT 2134
SHIZUOKA PREFECTURE

REGISTRATION NUMBER
47282995/2217

Name: Midoriya Izuku
Date of Birth: 15 July 2210
Blood Type: O
Sex: Male

Maternal Quirk: Animate
Paternal Quirk: Diagnostic

Quirk: Living Slime
Type: Emitter
Description: Grants the user control over a slime consisting of highly adaptable cells capable of movement, digestion and other specialised functions. These cells are capable of interfacing with cells of the user to repair damage, and to manifest tentacle-like appendages to defend the user.

Notes: Minimal control, current theory suggests this is the result of cells developing something akin to a nervous system, leading to instinctual activations. Quirk counselling has been recommended.

Addendums: Updated from Liquid Scab
[See attached document for additional information.]

I certify that this is a true copy of particulars recorded in the
Registry of Quirks and Villains in the Shizuoka prefecture Japan.

Hanako Yamada
Mayor of Musutafu

REGISTRY OF QUIRKS AND VILLAINS
DATE 4/5/2217

Any alteration of the substance of this certificate will render the document valueless. Any persons attempting an alteration is liable to prosecution.

Chapter 5: Repercussions (It’s not THAT bad)

A digital render of an official government document. The text reads “Quirk registry certificate. Quirks and Villains registration act 2134. Shizouka Prefecture. Name: Midoriya Izuku. Date of Birth: 15 July 2210. Blood Type: O. Sex: Male. Maternal Quirk: Animate. Paternal Quirk: Diagnostic. Quirk: Living Slime. Type: Emitter. Description: Grants the user control over a slime consisting of highly adaptable cells capable of movement, digestion and other specialised functions. These cells are capable of interfacing with human cells to repair damage, and to manifest tentacle-like appendages to defend the user. Notes: User has discovered the ability to focus healing onto others, previously inaccessible. Quirk may not be limited to only humans in it’s healing ability, but this has not been attempted as of this registration. Addendums: Updated verbiage to remove implication of user focused healing limitation [see Notes.]” At there footer of the page is fine print certifying the document and a warning not to alter the certificate, and a stamp signature.

QUIRK REGISTRY CERTIFICATE
QUIRKS AND VILLAINS REGISTRATION ACT 2134
SHIZUOKA PREFECTURE

REGISTRATION NUMBER
82655820/2217

Name: Midoriya Izuku
Date of Birth: 15 July 2210
Blood Type: O
Sex: Male

Maternal Quirk: Animate
Paternal Quirk: Diagnostic

Quirk: Living Slime
Type: Emitter
Description: Grants the user control over a slime consisting of highly adaptable cells capable of movement, digestion and other specialised functions. These cells are capable of interfacing with human cells to repair damage, and to manifest tentacle-like appendages to defend the user.

Notes: User has discovered the ability to focus healing onto others, previously inaccessible. Quirk may not be limited to only humans in it’s healing ability, but this has not been attempted as of this registration.

Addendums: Updated verbiage to remove implication of user focused healing limitation [see Notes.]

I certify that this is a true copy of particulars recorded in the
Registry of Quirks and Villains in the Shizuoka prefecture Japan.

Hanako Yamada
Mayor of Musutafu

REGISTRY OF QUIRKS AND VILLAINS
DATE 20/9/2217

Any alteration of the substance of this certificate will render the document valueless. Any persons attempting an alteration is liable to prosecution.

Chapter 19: Better late then never pt.1

A digital render of an official government document. The text reads “Quirk registry certificate. Quirks and Villains registration act 2134. Shizouka Prefecture. Name: Midoriya Izuku. Date of Birth: 15 July 2210. Blood Type: O. Sex: Male. Maternal Quirk: Animate. Paternal Quirk: Diagnostic. Quirk: Grants the user a companion quirk made of highly adaptable cells, materially approximating a “slime”. These cells are capable of replicating various functions of the human body such as speech, prehensile movement, digestion, ect, through the use of structural mimicry. The quirk’s primary function to heal the user and others, consistent with a natural healing quirk. Living Slime is able to separate from the user for 24 hours, exceeding which the cells making up the quirk will start to experience rapid cell death and expire. Notes: Living Slime currently connects to the user’s senses to perceive the world, but it’s theorised that it could be able to mimic sensory organs given enough time, letting the quirk be able to function even more independently from the user. Even if this theory is false, the degree of independence the quirk is currently capable of is a cause of concern in terms of quirk control, but is currently being addressed in independent quirk counselling. Addendums: Updated to include the classification of companion quirk and natural healing quirk, as well as it’s separation limit.” At there footer of the page is fine print certifying the document and a warning not to alter the certificate, and a stamp signature.

QUIRK REGISTRY CERTIFICATE
QUIRKS AND VILLAINS REGISTRATION ACT 2134
SHIZUOKA PREFECTURE

REGISTRATION NUMBER
19498372/2218

Name: Midoriya Izuku
Date of Birth: 15 July 2210
Blood Type: O
Sex: Male

Maternal Quirk: Animate
Paternal Quirk: Diagnostic

Quirk: Living Slime
Type: Emitter
Description: Grants the user a companion quirk made of highly adaptable cells, materially approximating a “slime”. These cells are capable of replicating various functions of the human body such as speech, prehensile movement, digestion, ect, through the use of structural mimicry. The quirk’s primary function to heal the user and others, consistent with a natural healing quirk.

Living Slime is able to separate from the user for 24 hours, exceeding which the cells making up the quirk will start to experience rapid cell death and expire.

Notes: Living Slime currently connects to the user’s senses to perceive the world, but it’s theorised that it could be able to mimic sensory organs given enough time, letting the quirk be able to function even more independently from the user.

Even if this theory is false, the degree of independence the quirk is currently capable of is a cause of concern in terms of quirk control, but is currently being addressed in independent quirk counselling.

Addendums: Updated to include the classification of companion quirk and natural healing quirk, as well as it’s separation limit.
[See attached document for additional information.]

I certify that this is a true copy of particulars recorded in the
Registry of Quirks and Villains in the Shizuoka prefecture Japan.

Hanako Yamada
Mayor of Musutafu

REGISTRY OF QUIRKS AND VILLAINS
DATE 6/1/2218

Any alteration of the substance of this certificate will render the document valueless. Any persons attempting an alteration is liable to prosecution.