Boku no Hero Academia:Izuku's Noumu Life

Disclaimer: This is a mature-rated fanfiction story of Boku no Hero Academia that I am writing for erotic fun. Needless to say, this story is AU, the characters may seem OOC to some and there will be gender-bent characters and smutty lemons. Also, I own nothing of the series other than the fanfiction stories that I make.

Chapter 0: Prologue

Over ten months ago, a middle school boy with green eyes, fluffy green hair and freckles on his face named Midoriya Izuku went missing.

A boy who wanted to be a hero in spite of lacking a superhuman ability known as a quirk, Izuku was mocked and mistreated by his peers for years. His chief tormentor was his former childhood friend and crush, a blond girl with sharp red eyes named Bakugou Katsumi who had a powerful quirk known as Explosion. She started mistreating him from the day she found out that he was quirkless at the age of four years old and the bullying eventually got so bad that Katsumi's last words to Izuku were, "If you want to be a hero so much, here's a quick way to be one! Take a swan dive off a roof and hope that you will have a quirk in your next life!"

When Izuku went missing, many of his former tormentors assumed that he either ran away or committed suicide due to being unable to continue living in a world where he could not find acceptance from anyone. Like all terrible and irresponsible people, they started to push the blame of Izuku's past suffering and mysterious disappearance to others, especially Katsumi who was admittedly the one who had caused Izuku the most grief. Thankfully, the police detective who was investigating the case, Tsukauchi Naomasa, had a quirk which allowed him to detect lies and quickly made sure that everyone who was responsible for Izuku's torment was punished to some degree or another. The students who had tormented Izuku had their past misdeeds recorded in their permanent records and not even Katsumi was spared. As for the staff of the middle school who did nothing to stop the abuse, they were forced to either quit teaching altogether or face criminal charges. As far as Naomasa was concerned, none of the people who had bullied Izuku or allowed his tormentors to abuse him unpunished were innocent.

Initially, Katsumi refused to believe that Izuku had killed himself and even refused to accept the fact that she was wrong in putting the "quirkless loser" in his "rightful place". However, after months of living without the boy and being forced to take therapy as a requirement to have even a slim chance of entering a prestigious hero high school known as U.A. High School, she was forced to accept the reality of her past actions. The fact that all the people who used to praise her for her talents and quirk started to consider her as a future villain after Izuku's disappearance only made it harder for her to ignore the truth of what she had done to the boy for years. Even her own parents, who were admittedly not aware of just how badly she had mistreated Izuku, distanced themselves from her until she started to realise that what she had done to the boy was wrong. As for Izuku's mother, an overweight middle-aged woman with short green hair and a ponytail on the left named Midoriya Inko, she treated Katsumi coldly ever since she found out about the full extent of the bullying and refused to forgive her for what she had done to her only son. Nothing short of finding the boy and being forgiven by him would make Inko even consider changing her mind about Katsumi.

As Katsumi came to fully comprehend what she had done and the consequences of her actions, her nights were filled with nightmares of Izuku blaming her before committing suicide by taking her "last words of advice". Her infamous anger started to turn inward as she realised that, enablers and fellow bullies aside, she was responsible for making Izuku miserable for years and was, as Inko would put it, essentially his personal villain. Only Katsumi's desire to be a hero and somehow atone for what she had done to Izuku kept her going as she spent every night wondering what had really happened to him and tearfully praying that he was somehow all right even if he refused to ever forgive her.

If only she knew Izuku's actual situation…

--In an unknown location…--

"Doctor, is he ready for use?" asked a man whose entire face was covered in scar tissue and had to rely on life-support to even breathe. Known as All For One, he was a powerful villain who had the unique ability to steal quirks, use the stolen quirks as his own and even grant the said quirks to others.

The Doctor, an elderly man with a short and stout build, a bald head and a large moustache who currently called himself Ujiko Daruma, grinned as he spoke to All For One, "He's ready for deployment, All For One. All he needs are some 'encouragement' with aphrodisiacs and nearby victims to violate."

All For One smirked cruelly as he spoke, "Good, Tomoko has been eager to make use of that Noumu for a while now."

Placing his hand onto the large tube which contained the said modified human being with dark-green known as a Noumu, Daruma sighed with a tinge of genuine regret in his voice as he spoke, "I'm going to miss having that Noumu around. His hidden quirk was such a wonderful ability to examine and it's truly a pity that even you cannot extract that quirk or even the modified quirks out of him. That quirk's ability to reduce the physical and mental strain of receiving multiple quirks would have been extremely helpful in my research."

"Personally, I'm more regretful of the fact that he actually refused to accept my offer to become a villain. With his dreams of becoming a hero constantly grounded into dust by basically everyone around him, including All Might himself, Tomoko and I honestly thought that he would readily join us," said All For One who then smirked as he added, "Still, he has his uses as a means of causing grief All Might and damage the reputations of heroes as a whole."

"Oh, yes he does," said Daruma who chuckled maliciously as he continued to speak, "Between the isolation from his peers from a young age and the lack of genuine affection from anyone other than his mother, turning him into a beast of primal lust has been so much easier to accomplish than making him into a weapon to kill All Might."

"Indeed, it has," said All For One who then added, "Even if this 'Violator Noumu' gets captured or becomes useless to us after Tomoko's first mission is over tomorrow, his admittedly unwilling acts of villainy will be enough to make everyone fear the League of Villains!"

--Meanwhile, in the mind of the "Violator Noumu"…--

…

Quirks [Nine quirks… One is mine… Eight are not…]…

Quirk Modifier [My original quirk… Can modify inserted quirks… Cannot change or remove them completely… Didn't even know I have it…]…

Complete Regeneration [Originally Super Regeneration… Regeneration speed has been reduced to lighten quirk burden… Can regenerate damaged or severed boy parts completely… Both brain and heart cannot regenerate…]…

Ogre Strength [Originally Titan Strength… Enhanced strength has been reduced to lighten quirk burden… Pointed ears and improved physique still remain…]…

Body Shifting [Originally Shape Shifting… Transformation range has been limited to different human body types or shapes to lighten quirk burden…]…

Mini Clones [Originally Self Cloning… Cloning ability has been limited to making six miniature clones to lighten quirk burden… Miniature clones can use every quirk except Quirk Modifier… They turn into slime when they expire or after half a day…]…

Gonad Control [Originally Guaranteed Impregnation… Quirk function has been altered to prevent unwanted pregnancies… Still causes increased libido like the original quirk…]…

Aphrodisiac Secretions [Originally Narcotic Secretions… Quirk function has been altered to remove addictive narcotic effect… Aphrodisiacs can cause body-altering effects such as breast enlargement and lactation like the original quirk…]…

Sexual Bonding [Originally Sexual Brainwashing… Quirk function has been altered to enable communication and avoid enslaving unwilling partners/victims…]…

Sexual Healing [Originally Sexual Moulding… Quirk function has been altered to heal injuries and cure ailments instead of causing permanent body alterations… Surprisingly useful as a means of beauty care…]…

…

Complementation [Two or more quirks working together…]…

Ogre Strength and Body Shifting [Body Shifting can increase or decrease effects of Ogre Strength depending on resulting body type…]…

Body Shifting and Mini Clones [Miniature clones can grow up to baseline mass, shape and/or size…]…

Body Shifting and Gonad Control [Gonad Control can enhance growth in muscle mass, bone mass, hair/fur and penis size…]…

Mini Clones and Gonad Control [Miniature clones disintegrate into ejaculate-like substance after expiring…]…

Gonad Control and Aphrodisiac Secretions [Pheromones, pre-ejaculate and ejaculate can act as aphrodisiacs with body-altering effects…]…

Gonad Control, Aphrodisiac Secretions and Sexual Healing [Aphrodisiacs can gain a healing effect… Ejaculate can be directly absorbed into a partner's/victim's body to promote healing and recovery…]…

…

…

…

Name [I'm Midoriya Izuku…]…

Afraid [I'm scared...]…

Villain [I don't want to hurt anyone…]…

Hero [I just want to help people…]…

Lonely [Does anyone even care I exist…?]…?

Hopeless [Am I really so useless…?]…?

Loveless [Am I doomed to be forever unwanted…?]…?

Aphrodisiacs [I'm losing my mind…!]…!

Pain [They burn…!]…!

Help [Save me…!]…!

…

…

…

Please [Anyone…]…

--End Chapter--

Author's Notes:

This is the "downer prologue" chapter of a story idea which features a Noumu Izuku. Unlike most Noumu Izuku, it explores the idea of using Izuku as a heroine-raping tool instead of a hero-killing weapon. Needless to say, this story is full of lemony smut and the actual story begins during the USJ attack.

There are some important notes including:

- Gender-bent characters including Bakugou Katsumi (Katsuki), Todoroki Shouko (Shouto) and even Shigaraki Tomoko (Tomura). Additional gender-bent characters are optional but not necessary (yes, that includes gender-bent Kirishima Eijirou and even Mineta Minoru).

- Izuku's mind is not completely broken but it has been badly affected by the process which turned him into a Noumu. As a result, he is unable to speak and instinctively acts like an animal but he is still self-aware and highly intelligent. He can also communicate with girls by kissing them (with his tongue involved). The prologue shows that he can still think complex thoughts though nowhere close to the degree of his canon self.

- Izuku gaining a harem starting/sticking with the girls of Class 1A who were present during the USJ attack. Who the lead girl is largely dependent on who would be the most willing to accept him. That said, Katsumi will most likely not be the lead girl due to Izuku's understandable fear towards her due to years of past abuse. That fear combined with his altered state of mind due to becoming a Noumu and the reality that he has become an unwilling villain equals to a high chance of Izuku wanting to flee form her instead of having sex with her until she regains his trust.

- Speaking of Katsumi, expect angst and drama for her character as she has to face one or both situations: The girls of the harem reject Katsumi due to her past misdeeds and/or Izuku being too scared to even go near her let alone try to communicate with her.

- Izuku being kept in U.A. High School under probation for the sake of rehabilitation with the help of his harem. He is also given a chance to train to be a hero. This leads to the early construction of the U.A. Dorms.

- All Might taking personal responsibility in helping Izuku in spite of giving One For All to someone else (Tougata Mirio comes to mind). All Might will also reveal his weakened state to the girls in Izuku's harem and Izuku's mother to explain about both his part in Izuku's situation and All For One.

- No tentacles are involved but Izuku's a "one man gang-bang" with the ability to cause body alterations for both himself and the ladies.

- Izuku's baseline body is taller, more muscular and better-endowed than his canon self due to becoming a Noumu. He has pointed ears, dark-green skin, large green eyes and freckles on his face. He's basically an orc that lacks tusks and looks pretty human.

- Izuku needs to eat and drink a lot to fuel his altered body. He still likes Katsudon.

On a side note, I will be posting one more prologue chapter of a different story before I continue with Izuku's Harem Academia.

Until next time, go beyond, plus ultra!