Boku no Hero Academia:Izuku's Pet Noumu

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

Chapter 0: Prologue

In one universe, a boy with fluffy green hair, large green eyes and freckles on his face named Midoriya Izuku had only one childhood friend. That one childhood friend of his was Bakugou Katsuki, a boy with sharp red eyes and blond hair who would eventually become Izuku's cruellest tormentor for years to come. As for why Katsuki would become Izuku's tormentor, it was partly caused by the fact that Izuku lacked a superhuman ability known as a quirk while Katsuki was blessed with a powerful quirk which allowed him to create explosions. In a world where essentially everyone in Izuku's age group had a quirk, Izuku's quirklessness made him an outcast among his peers.

However, in this universe, Izuku actually had another childhood friend who remained loyal and steadfast until the day she mysteriously disappeared a few years after Izuku realised that he was quirkless at the age of four years old. Her name was Nikaido Wankuro and, much like Izuku, she was quirkless. In spite of lacking a quirk, the girl with red eyes, tan skin and abundant spiky black hair had a fighting spirit so strong that she was almost on par with Katsuki. Needless to say, Izuku was inspired by her courage and wanted to be her equal.

Unlike Katsuki who despised the very idea of Izuku being his equal, let alone his better, Wankuro was happy to help Izuku by coming up with ways to train his body so that he would be able to at least stand up for himself. After all, how could Izuku achieve his dream of becoming a hero if he could not even stand up for himself and stop the bad guys from getting away with their wrongdoings?

While most of Izuku and Wankuro's peers saw their relationship as rather one-sided, with Wankuro being the dominant one and Izuku as her submissive lackey or trainee, it was actually more balanced than they expected. For one thing, Wankuro appreciated Izuku's genuine desire to be her friend and admired his sincere desire to help others in spite of being even more powerless than herself. Also, she simply loved the way Izuku hugged her and even petted her head. In fact, she would visit Izuku's house just so that he could pamper her with hugs, cuddles and "head-pats" without having to worry about anyone finding out. Granted, there was Izuku's mother, Midoriya Inko, but she was nice enough to keep the "pampering sessions" a secret from everyone else and could make really delicious Katsudon.

Tragically, Wankuro disappeared one day and it was discovered that she actually came from an abusive family who decided to sell her off to get rid of her due to both her quirkless nature and her rebellious attitude. In hindsight, Izuku should have realised that something was wrong but he was too young and innocent to realise the problem and Wankuro made sure to never reveal the truth of her family circumstances to him or even his mother.

The only reason why Wankuro's abusive parents got caught was because Izuku and his mother took her disappearance seriously enough to make a police report about it. However, by the time the police took action, Wankuro was already long gone with no way to find her whereabouts. Izuku took the loss hard but eventually became even more determined to be someone who could help others even if he could not be a professional hero (pro-hero).

In a different universe, Katsuki held a fear that Izuku would become his equal or even his better. That fear remained true in this universe and had in fact grown as Izuku was not only determined to at least try to become a pro-hero in spite of being quirkless but even had the courage to stand up to Katsuki. Izuku was not even afraid to call out anyone, including his home room teacher and even the school principal, on the double standards which he was expected to suffer in silence just because he was quirkless.

Katsuki's "solution" to the problem with Izuku was to be even more aggressive towards him. However, Izuku not only refused to back down or submit but in fact became even more motivated to stand up to Katsuki and fight back. The conflict between the two boys eventually got so bad that not even their teachers could ignore the fact that the "talented and strong" Katsuki had a problem. As a result of the growing conflict between Izuku and Katsuki, the two boys eventually had to be separated into different classes during middle school and were obligated to receive counselling.

Almost everyone was shocked that the "problem child" of the middle school, Midoriya Izuku, was officially deemed as mentally sound within a week while it took Katsuki several months just to start getting over a range of mental issues which few had cared to notice before including a massive superiority complex and extreme aggression. In fact, the counsellor who counselled Izuku actually liked the boy enough to offer him professional training if he ever considered becoming a counsellor instead of a pro-hero. Needless to say, Katsuki was very angry by the fact that Izuku had irrefutably beaten him in that particular situation.

Although the circumstances were somewhat different from most, Izuku was able to not only gain the respect of the current No.1 Hero and Symbol of Peace, All Might himself, but even receive his quirk, One For All. As for how it happened, it all started with Izuku deciding to clean up the an entire beach which was covered in trash known as Dagobah Municipal Beach Park to train his body. The boy's decision soon got the attention of a certain skeletal blond man with blue eyes named Yagi Toshinori. Izuku quickly befriended Toshinori and told him his reasons of wanting to at least try his best to become a pro-hero. The skeletal man approved of his reasoning and even helped the boy with the training by offering him suggestions to better improve himself. Izuku found it rather ironic that the skeletal man had suggested hearty meals with plenty of meat and vegetables as a part of the body-building regime.

In spite of Izuku's increased confidence and willingness to fight, he was still a hopeless fan of heroes, especially All Might whose real name was Toshinori Yagi. Understandably, Izuku almost had a heart attack when he finally realised that the skeletal blond man whom he had befriended at the beach park was actually All Might himself. Although Izuku was not sure if he was truly worthy of receiving the One For All, especially since he had already failed in saving his true best friend, Wankuro, he accepted it on the day he finished cleaning the beach park with Toshinori's personal blessings.

Thanks to his already good physique even before he started cleaning up the beach park, Izuku could safely use 7% of One For All without damaging his own body. Also, since Izuku was able to clean the whole beach park a few days before the start of the entrance exams into a certain prestigious hero high school called U.A. High School, he had a chance to practise his quirk before the start of the exams. Those few days of practise was a huge blessing for Izuku as he was able to safely use One For All during the practical portion of the exam which involved destroying faux-villain robots. That said, he had to literally break his legs and arm to save a certain girl with short brown hair, visible pink blushes on her cheeks, large round eyes and soft pads on fingertips named Uraraka Ochako from getting crushed by a massive robot. As a result of both his fighting ability and his act of bravery, he was awarded a total of 99 points, the highest total points in the whole exam. Izuku was still a crybaby at heart and wept in joy as he realised that he had passed the exam with flying colours.

A lot had happened to Izuku during the first few days of attending U.A. High School. His home room teacher, a scruffy-looking pale-skinned man with dark hair named Aizawa Shouta, threatened to expel the student who performed the worst in a quirk assessment test on the very first day of school. Luckily for a certain perverted boy named Mineta Minoru, the threat of expulsion was a logical ruse meant to drive the students to their limits. Then, there was the battle trial in which Izuku was able to defeat Katsuki by using his ego against him. Not surprisingly, Katsuki was infuriated by not only Izuku's entrance exam results and performance during the quirk assessment test but also the fact that Izuku had actually defeated him in the battle trial. Most recently, Izuku was voted to be the class representative with another student named Yaoyorozu Momo as his vice-representative before he decided to give up the position to another student named Iida Tenya.

Izuku could not help but wonder what would happen next in his hero academia…

--Meanwhile, in an unknown location…--

"Doctor, is she 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, "She's ready for deployment, All For One. All she needs are some 'encouragement' with combat drugs and the right moment to turn loose."

All For One smirked cruelly as he spoke, "Good, Tomura 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 skin 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. Her hidden quirk was such a wonderful ability to examine and it's truly a pity that even you cannot extract that quirk out of her. That quirk's ability to withstand 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 she cannot be tamed in spite of our efforts to break her," said All For One who then smirked as he added, "Still, she has her uses as a means of causing grief All Might and damage the reputations of heroes as a whole."

"Oh, yes she does," said Daruma who chuckled maliciously as he continued to speak, "While we cannot control her, we can still make use of her as a monster that will destroy everyone and everything around her. Personally, I'm impressed that Tomura actually thought of using her as 'disposable character' on his own."

"Of course, Tomura is to be my successor after all," said All For One who then added, "Even if this 'Hellhound Noumu' gets captured or becomes useless to us after Tomura's first mission is over tomorrow, her admittedly drug-induced acts of savage villainy will be enough to make everyone fear the League of Villains!"

--In the mind of the "Hellhound Noumu"…--

I'm… Wankuro [Wan-chan!]…

I… have to stay strong [You're really cool!]…

I… refuse to be a villain [I want to be a hero!]…

I… must not give up [I want to help people!]…

Damn… the drugs [You're my best friend!]…!

Please… help me [I… really like you…]…

Izuku [You can all me Izuchan!]…

Pain [Quirkless brat!]…

Hate [You shouldn't even exist!]…

Kill [Die, you quirkless bitch!]…

Destroy [You'll make a fine weapon, Hellhound.]…!

--End Chapter--

Author's Notes:

This is the second story idea which I had and decided to write down. It is inspired by four things:

A BNHA fanfiction story written by TealeafCustom called 'Angel on My Shoulder' which features a dog which can turn into a very sexy human lady with dog features. The story is at Fanfiction Dot Net and the link is: [https/s/12663433/1/Angel-on-my-Shoulder]

A BNHA fanfiction story by by two writers, Epsilon110 and Yojimbra, called 'Made to Kill, Chose to Love' which features a female noumu character who likes Izuku. The story is at Archive of Our Own and the link is: /works/21109898/chapters/50231402]

A BNHA fanfiction story written by Zeuzul called 'The Sheep Among Wolves' which portrays Izuku as having an uncanny bond with a cat. The cute interactions between the two was what drove me to coming up with this story idea. The story is at Archive of Our Own and the link is: /works/20190883/chapters/47840995]

The Hellhound monster girl from Monster Girl Encyclopaedia which serves as the basis of my OC Noumu character. The link is: [https/monstergirlencyclopedia./wiki/Hellhound]

Some things to make clear:

- In spite of the downer prologue, this is a story with lots of fluff with a dose of humour and smut. This means lots of hugs, cuddles, "head-pats", snuggles and kisses.

- Izuku will have a harem but it will be a small harem including both Ochako and the OC, Wankuro. Whether or not he gets a few more girls is not confirmed.

- Wankuro has dark skin, spiky black hair and fur, red eyes with black sclera, dog-like paws in place of hands and feet, a bushy tail, dog-like ears and fangs for canines. If you want to have a more visual idea what she look like, look at the MGE version of the Hellhound.

- Wankuro's original quirk is called Indomitable Spirit which causes her to have a strong fighting spirit. As a result of her quirk, she will never bow or submit to anyone whom she despises. However, she can still suffer from PSTD and feel both fear and grief. It is also important to note that being indomitable does not equate to being domineering as Wankuro loves being pampered by Izuku, does not mind having friends who are her equals or betters and is not against sharing Izuku with other people whom she likes a lot. She will also consider retreat if she deems it as a viable option.

- As a Hellhound Noumu, Wankuro is very strong, tough and fast even in her baseline form. She can transform into a massive wolf to be even more powerful at the cost of losing stamina more quickly. She also heals quickly and can completely recover from most injuries but the healing process consumes her stamina. The claws on her paws can grow into sharpened blades capable of slicing through steel. She can even cover herself in an aura of fire and breathe out a torrent of flames. However, overusing the flames will cause her to actually burn herself, including her throat if she breathes out too much fire. In terms of destructive power Wankuro is easily on par with the Noumu designed to kill All Might.

- Yes, Izuku is the key to saving her in the main story and it happens early on in the story.

Much like Izuku's Noumu Life, Izuku's Pet Noumu can serve as starters for other writers to create their own versions of my idea. As long as my contribution to the creation of their stories is acknowledged, I have no problem with other people making use of the two story ideas.

Also, please note that my main focus will be Izuku's Harem Academia as I actually want to complete the story.

Until next time, go beyond, plus ultra!