Before we actually dive into the story, I want to make some basic information clear about this story and you might need to know before reading the story. This is a Nomu!Izuku AU as well as a bit of a "Chainsaw Man" crossover. Although, Izuku and some characters are not really Nomu. Allow me to explain this:

"NOMU" is the combination of the Kanji 脳の(brain) and 無(nothingness) which of course means that they are basically mindless soldiers serving AFO and Shigaraki

However, I wanted to differentiate Izuku and a few Characters. While Izuku and other characters are classified as Nomu by the heroes, AFO and the Docter will Classify them as a sort of subspecies known as Kokoromu

"KOKOROMU" is the combination of the Kanji 心(heart) and 無(nothingness). This means that Izuku and a few other characters are "Heartless Soldiers" so to speak, they can think and understand but have no true meaning of a "Heart"

Let's meet the Main Characters of this story shall we?


Major Players:


Name: Izuku Midoriya

Classification: Kokoromu, Human(formerly)

Occupation: Works for the newly founded HVE Corp. that was created by both the heads of the Hero Association and the Police department

Quirk: Chainsaw Man, Regeneration

Code-Name: Chainsaw-Man

Clothes: A White dress shirt with a black tie, (just imagine him without the vest) black slacks, black dress suit.

Basic Information: can eat regular food, but also feeds on Nomu. Apathetic to humans and their emotions, reserved, can become heated during a battle, says he wants to feel the emotion of "love". Can not remember what he used to be like or who he knew, all he knew was his name

Background Information: [Classified]


Name: Mawata Fuwa

Classification: Kokoromu, Human(formerly)

Occupation: Works for the newly founded HVE Corp. that was created by both the heads of the Hero Association and the Police department

Quirk: Razor-Wire, Regeneration

Code-Name: Razzor

Clothes: She usually wears the UA high school Uniform since she finds it Fashionable and thinks it looks cute on her

Basic Information: can eat regular food, but also feeds on Nomu. Apathetic to humans and their emotions, outgoing, happy, very blunt, can become heated during a battle, says she wants to feel the emotion of "lust". Can not remember what she used to be like or who she knew, all she knew was her name

Background Information: [Classified]


Name: Sen Kaibara

Classification: Kokoromu, Human(formerly)

Occupation: Works for the newly founded HVE Corp. that was created by both the heads of the Hero Association and the Police department

Quirk: Drill, Regeneration

Code-Name: Driller-Killer

Clothes: A white shirt with the words "Atamani Drill", a Blue hoodie over it, a pair of sweat pants, and running shoes

Basic Information: can eat regular food, but also feeds on Nomu. Apathetic to humans and their emotions, social, very blunt, can become heated during a battle, says he wants to feel the emotion of "Normality". Can not remember what he used to be like or who he knew, all he knew was his name

Background Information: [Classified]


Name: Chitose Kizuki

Classification: Kokoromu, Human(formerly)

Occupation: Works for the newly founded HVE Corp. that was created by both the heads of the Hero Association and the Police department

Quirk: Landmine, Regeneration

Code-Name: Blow-Out

Clothes: She wears a black dress under a red and black fur coat and a pair of platform heel shoes

Basic Information: can eat regular food, but also feeds on Nomu. Apathetic to humans and their emotions, very social, cunning, happy, can become heated during a battle, says she wants to feel the emotion of "Fear". Can not remember what she used to be like or who she knew, all she knew was her name

Background Information: [Classified]


Name: Saiko Intelli

Classification: Kokoromu, Human(formerly)

Occupation: Works for the newly founded HVE Corp. that was created by both the heads of the Hero Association and the Police department

Quirk: IQ, Telekenisis, Regeneration

Code-Name: Luxury

Clothes: She wears a white, double-breasted blazer with a high collar and a gold trim that reaches halfway down her thighs, its sleeves elbow-length and cut off by wide pale blue cuffs, a large pink bow at her neck, a dark blue long-sleeved shirt with matching dress pants, white gloves and white boots. She also wears a golden monocle over her left eye, a chain hanging off one side with a small jewel at the end, the same color as her eyes.

Basic Information: can eat regular food, but also feeds on Nomu. Apathetic to humans and their emotions, very social, cunning, happy, Very intelligent, can become heated during a battle, says she wants to feel the emotion of "peacefulness". Can not remember what she used to be like or who she knew, all she knew was her name

Background Information: [Classified]


Name: Emi Fukukado (A.K.A Ms. Joke)

Classification: Human

Occupation: Hero, Works for the newly founded HVE Corp. that was created by both the heads of the Hero Association and the Police department. A "Watcher" over the Kokoromu

Quirk: Outburst

Hero Name: Ms. Joke

Clothes: When she's not working, she wears a dark green overall dress over an Orange shirt, and also wears brown boots. When working, Her hero consists of a sleeveless navy blue shirt with a high collar that's buttoned up all the way to her chin, puffed shorts with a green and orange pinstripe design, a corset, a white V-shaped belt, and on her hands, she has padded yellow gloves with golden plates over her knuckles and lower fingers, which extend in orange-striped tubes down her lower arms, with thick metal cylinders acting as wrist-guards over the top. She also wears an orange bandanna, and her costume sometimes includes a white hygiene mask with a circular smiley-face protrusion on either side.

Basic Information: Emi Fukukado, also known as Smile Hero: Ms. Joke, is a Pro Hero and a former teacher of a 2nd year Class Ketsubutsu Academy High School. Emi is known for her cheerful and outgoing personality. She always has her goofy and somewhat obnoxious sense of humor on full display and jumps at the chance to make others laugh. She enjoys poking fun at mostly Izuku and Mawata. Her playful attitude plays into her hero work as she fights by distracting her opponents with laughter. Though her behavior may appear unprofessional, Ms. Joke takes her job as a "Watcher" and pro hero very seriously,

Background Information: [Classified]


Name: Moe Kamiji (A.K.A Burnin)

Classification: Human

Occupation: Hero, Works for the newly founded HVE Corp. that was created by both the heads of the Hero Association and the Police department. A "Watcher" over the Kokoromu

Quirk: Fire Ball

Hero Name: Burnin

Clothes: When she's not working, she wears a white, black, and orange turtle-neck windbreaker with a pair of dark green yoga pants with light green spots, a pattern similar to that of a Giraffe, and a pair of green and orange running shoes. When working, Her hero costume consists of a light-gray jacket. Her collar, belt, and wrist guards are black with a smaller red line. She wears a belt with a temperature gauge on the front and a fire extinguisher on the back, black knee-high socks, and short black boots. Her mask is black and is connected to a red headband.

Basic Information: Moe Kamiji, also known as Burnin, is a Pro Hero and is one of the over thirty sidekicks who used to work at the Endeavor Agency. Moe possesses a burning hot personality as she is very enthusiastic and her fiery personality tends to make the Kokromu very excited.

Background Information: [Classified]


Name: Naomasa Tsukauchi

Classification: Human

Occupation: Detective, Works for the newly founded HVE Corp. that was created by both the heads of the Hero Association and the Police department. A "Watcher" over the Kokoromu

Quirk: Detector

Clothes: As a member of the police force, he is normally seen in his uniform, which consists of his signature tan overcoat and matching hat, underneath which he wears a black suit, a green tie at his neck with matching slacks and dress shoes.

Basic Information: Naomasa Tsukauchi, is a police detective in the Police Force and is also the 1st in command of the HVE Corp.

Background Information: [Classified]


Name: Monika Kaniyashiki

Classification: Human

Occupation: Detective, Works for the newly founded HVE Corp. that was created by both the heads of the Hero Association and the Police department. A "Watcher" over the Kokoromu

Quirk: Scissors

Clothes: she wears a knee-length kimono, left open to reveal a combat vest and pale shorts, a pair of black 3/4 leggings underneath. She also sports fingerless gloves and geta on her feet, as well as a striped headband. When working as a police officer, she wears the standard female uniform of the Japanese police.

Basic Information: Monika Kaniyashiki is a member of the Police Force and is also the 2nd in command of the HVE Corp.

Background Information: [Classified]


With the characters out of the way and some of the basic information given for the story.

More backstory on how this happened will be revealed in the story of course, as well as how the Kokoromu differs from Nomu and how they are actually a little more advance than even high-end Nomu's and how they came to be and why they are called Kokoromu, the formation of the HVE Corp. and how they interact with certain characters.

I will also dive into what each of them wants, how they feel, etc.

I also want to let you know, that while these are our main characters in the story, they won't be the only ones showing up, and not all or any of them are gonna make it out alive in the end.

So I'm telling you straight up, this story will not have a happy or even bittersweet ending, it's just what I would call an "Apathetic Ending"