Disclaimer: This is a fanfiction story of Boku no Hero Academia. I own nothing of the series other than the idea I have been thinking about for weeks.

Tale 1.1: Monstrous Hero Izuku

"Men are not created equal. That is the tragic truth of the world, especially in a world where superhuman abilities known as quirks exist."

A large humanoid creature which was surrounded by a flock of doves slumbered on the roof of a middle school. It possessed digitigrade feet with clawed toes, long arms with clawed fingers, a whip-like dextrous tail and a long thick neck which supported a bald humanoid head which had holes in place of human ears, a pair of slits in place of a human nose and a wide lipless mouth which resembled the mouth of a reptile. In the past, such a creature would be regarded as a monster even while dressed in a custom-made middle school uniform. However, in a world where quirks existed, the completely hairless creature was deemed as unusually inhuman in appearance instead. Yes, in spite of the obviously inhuman traits, the creature was actually a middle-school human boy named Midoriya Izuku.

Hearing the ringing of the school bell, one of Izuku's bright green eyes opened slightly. The doves which surrounded the boy were hardly disturbed by his awakening and merely moved away from him instead of flying away. They were already used to the presence of the boy who often fed them and spoke about his personal problems to them.

Yawning widely, which revealed an impressive set of pointed canines and even molars, Izuku rubbed his sleepy eyes and muttered to himself, "I really shouldn't have checked on the hero news until past midnight yesterday." In spite of his large and monstrously bestial appearance, Izuku was actually a highly intelligent and caring individual who was also a hopeless fan of heroes, especially the number one hero of the current age, All Might.

"In a world where quirks exists, there are two types of people. Heroes who use their quirks to uphold justice and protect the innocent and villains who abuse their quirks for selfish gain or to hurt others instead."

Stretching his body like a cat, Izuku then walked back to his classroom. Moving with an odd mix of bipedal and quadruped movements, Izuku moved like a prowling monster which was about three metres long from head to tail. As Izuku made his way to his classroom, many students stepped aside and watched him cautiously as he passed by. While everyone in school did not doubt the fact that Izuku was actually a kind human being with a quirk, they were still intimidated by his inhuman appearance, large size and predatory way of moving. That was not counting the near-constant conflict between him and a certain boy with spiky blond hair and sharp red eyes named Bakugou Katsuki.

Hearing an explosion from his classroom, Izuku sighed irritably as he knew who caused it and grumbled, "What crawled up his butt and died this time?"

In a different universe, Midoriya Izuku and Bakugou Katsuki were childhood friends who would eventually drift apart due to Katsuki bullying Izuku. As for this universe, Izuku only got to know Katsuki because their respective mothers were friends who placed them in the same kindergarten. Izuku never got along with Katsuki even though both boys shared the same love for heroes, especially All Might. It certainly did not help that Katsuki not only considered the idea of a "wimpy monster" like Izuku becoming a brave hero a laughable idea, he got the other children to agree with him. The fact that Izuku was smaller than most children his age at the time, had a tendency to walk on all fours and cried easily only made it easier for Katsuki to bully him and even get others to do the same. Due to the bullying, Izuku ended up spending most of his time alone either doing research on the abilities of different heroes or playing with animals. Although Katsuki's mother, Bakugou Mitsuki, tried to get Katsuki to stop, the boy never bothered to stop bullying Izuku.

When Katsuki's quirk[Explosion, manifested at the age of four years old, he became even more arrogant and abusive towards Izuku. Able to create explosions by igniting the nitro-glycerine in his own sweat, many people thought that Katsuki had a bright future as a hero just like All Might. For a time, his future as a hero who never loses seemed all but certain.

That was until the day Izuku developed his second quirk at the age of five years old, a quick known as [Biomorph]…

"However, this begs the question on who has the right or authority to decide that a person is a hero to be admired or a villain to be reviled. While personal opinions can be biased even in the best of times, society as a whole is anything but free of bias or prejudice."

-Start of flashback…-

While there was no doubt that Katsuki enjoyed tormenting Izuku, the smaller boy quickly became exceedingly skilled in finding places to hide from him, the other children and even the teachers who were not particularly helpful towards Izuku. As such, it was not unusual for Katsuki to find someone else to torment especially after he had developed his explosive quirk.

The thing was, the five year old boy found no one to bully on that day so he was both bored and frustrated. Izuku had hidden himself again as usual, his "friends" were of no help in giving him ideas on how to spend his playtime and even the other kids whom he bullied were getting better at staying away from him. With no one to vent his aggression on, Katsuki decided to torment something else that time. And it just so happened that he found a seemingly perfect target. After all, who would complain about him driving away an ugly cat from the school grounds?

Grabbing a random rock, Katsuki threw it at the cat and used his quirk at the same time to make it fly at increased speed. He expected the stone to hit the cat when Izuku suddenly appeared and took the blow for the cat. The stone hit Izuku's right flank and the boy screamed in pain.

While the cat ran away in fright, Katsuki and his "friends" were shocked by what had happened. Young and unsympathetic as they were, they still understood the basic idea of getting into trouble for throwing a rock at another child, especially an explosive-propelled rock.

Being an aggressive boy who hated the very idea of losing, Katsuki angrily yelled at Izuku, "What the hell, Deku?! Why the hell did you get in the way?"

Izuku gritted his teeth and struggled to get back on his feet as tears welled up in his eyes. Glaring at Katsuki, Izuku responded between pained breaths, "H-heroes… are… s-supposed… to… protect… not hurt!"

Shocked that Izuku actually had the audacity to tell him how a hero should act, Katsuki angrily yelled, "And what the hell does a monstrous freak like you know about being a hero, Deku?!"

As stated before, Katsuki had not only bullied Izuku but also got other children to either do the same or ignore Izuku when he got bullied. In addition, Katsuki's cruel attitude towards others, including animals apparently, went against Izuku's own ideals of a hero as a person who protects the innocent. Granted, Izuku preferred to be by himself most of the time and was thus largely uninvolved with Katsuki's other victims but the cat which Katsuki tried to hurt was one of his animal companions and was a mother of five newly-born kittens. Izuku was therefore close to losing his temper when Katsuki callously added, "Or better yet, why don't just become a villain like the useless monster you really are!?"

What happened next was over within a moment as Izuku, in a moment of childish rage, suddenly transformed his arm into a bony gauntlet and punched Katsuki in the face. The punch was strong enough to knock Katsuki off his feet and knocked him out cold with a crushed bloodied nose and a broken baby tooth. After a stunned moment of silence, Izuku was horrified by what he had done while Katsuki's "friends" all fled in terror of the "monster" known as Deku…

"It is all too easy to judge another person based on appearance, quirk or personality. Even I am not incapable of committing that terrible misdeed."

-End of flashback…-

Although Izuku was spared harsh punishment, he was even more ostracised than before as a result of attacking Katsuki. Strangely enough, Katsuki himself actually stopped bullying Izuku ever since that incident and did not even try to get revenge on him. Izuku could have asked Katsuki for the reason why he stopped antagonising him but his guilt combined with his belief that nothing good would come from trying to be friendly with Katsuki made Izuku reluctant to ever be anything more than a mere childhood acquaintance to him.

Due to feeling guilty of attacking another person, even someone as terrible as Katsuki, Izuku vowed to only use his quirk to help others. His quirk allowed him to alter the shape and properties of various body parts such as creating longer claws, creating a protective hardened shell and even change his arms into wings by altering and redistributing his own biomass at the cellular level. It also allowed Izuku to heal more quickly from injury and even regrow or reattach limbs. However, the quirk had limitations as it needed both biomass and energy for his body to transform and then maintain the transformation.

Not long after Izuku discovered his second quirk and made his decision to only use it to help others, he trained his biomorphic powers in secret away from prying eyes. As a result, almost no one knew the full extent of his powers other than his mother and a certain blond girl with yellow cat-like eyes named Midoriya Himiko.

Izuku suddenly realised one simple fact about Himiko whom he first met at the age of six years old, "Now that I think about it, Himi-chan still has that smell of human blood, even though it is entirely my own blood now." When Izuku first met Himiko, her full name was Toga Himiko and he was training his senses when he got a whiff of her bloody scent. This led to Izuku following Himiko's scent out of both curiosity and concern until he found her and realised that she was badly abused by her single mother. Not surprisingly, Izuku quickly contacted the authorities to stop the abuse which eventually led to having Himiko as his admittedly crazy stepsister.

Due to Himiko's abused early childhood and need for blood to use her own quirk[Transform, she developed an unhealthy attraction to human blood. Having witnessed her abusive family life first-hand, Izuku willingly offered his own blood to help her curb her literally bloodthirsty urges with his mother's reluctant permission. Thanks to his biomorphic quirk, Izuku was able to quickly regenerate his own blood so it was not much of a problem for him to use it as a means of slowly weaning her of her urges over the years. With that said, Izuku could not help but worry that Himiko's desire for his blood had been replaced with a desire for… other kinds of bodily fluids lately.

As Izuku got close enough to hear Katsuki's loud voice, he suppressed a groan after he heard Katsuki yell, "I'll fucking kill you, you psycho bitch!"

Slapping his hand onto his face, Izuku just could not understand why Himiko kept on antagonising Katsuki in spite of advising her to stop multiple times. While both Izuku and Himiko agreed that Katsuki was an abusive jerk even at the best of times, Izuku generally preferred leaving him alone unless he was attacking someone unprovoked, which was actually less common than what one would expect of someone with his personality, while Himiko preferred to provoke him into a rage. Her favoured method of provoking him was to obtain his blood so that she could transform into him to do something embarrassing, such as publically singing a sappy love song to his own mother who actually found the prank to be hilarious, or at least try to obtain his blood.

As intimidating as Izuku appeared, which was mainly caused by a terrifying phenomena called puberty, many people still felt sympathetic towards him for having to deal with an aggressive childhood acquaintance and a crazy stepsister on a daily basis. It was therefore not unusual for his peers, and even a few teachers, to offer him sympathetic looks as he dragged his feet back to his classroom to break up the latest fight between Katsuki and Himiko. Izuku's aggravated expression spoke volumes of the normally kind and helpful boy's reluctance to deal with the issue for the umpteenth time.

When Izuku peeked into the classroom, he sighed in exasperation as he saw Himiko giggling like a madwoman while skilfully dodging Katsuki's attempts to blow her to pieces with his explosive quirk. Normally, quirks were not supposed to be used in public but few dared to get on Katsuki's bad side and Himiko usually fought without using her quirk in order to obtain his blood.

Using his biomorphic quirk, which he could swear had improved significantly just to keep Katsuki and Himiko from actually killing each other, Izuku quickly stopped the two. His right arm gained tough leathery skin with a thick layer of fat to absorb the concussive force of Katsuki's explosive attacks while his dextrous tail elongated and quickly coiled around Himiko's waist to stop her acrobatic antics. Glaring irritably at the two, Izuku had to ask, "Alright, who started it this time?"

Still giggling as though she… no… as she was actually having fun, Himiko cheerfully answered, "I just wanted to take a few drops of Baka-gou's blood so that I can transform into him while dressed in a magical cat-girl dress and then take some pictures to upload to the internet!"

Both Katsuki and Izuku were horrified by the sheer audacity of Himiko's latest plan for a prank and Izuku felt a rare emotion of sympathy towards Katsuki. Sighing in exasperation, Izuku replied, "Himi-chan, that's just plain horrible, even for someone like Baka-gou."

Ignoring Katsuki's enraged protest at the blatant insult, Himiko giggled and said, "Hey, it's not like I won't explain that the pictures were me using his form. I may be a crazy bitch, but even I'm not that cruel."

"Even so, please don't do it. I already have enough bad memories of him and seeing him in a magical cat-girl dress will only give me even more bad memories," said Izuku who quietly added, "Just imagining it alone is already bad enough!"

Seeing Izuku's honestly pleading expression made Himiko pout petulantly as she reluctantly agreed, "Fine, I won't use Baka-gou's form while dressed in a magical cat-girl dress. I'll just use it while dressed in a magical princess dress."

Feeling as though a lead weight had landed onto his head, Izuku pleaded again, "Not that either, please!"

"Will a clown suit be okay then?" asked Himiko.

Izuku considered Himiko's latest suggestions for a moment before nodding his head in affirmative and saying, "That will be fine."

Suddenly, Izuku felt another explosion boing off on his still-transformed right arm before hearing Katsuki yell, "Are you two fuck-munchers done yet?! I'll blow you both up into fucking pieces if you plan to keep me from blowing her up!"

Glaring at Katsuki with a look which would have terrified most people, Izuku replied, "Considering that I have just convinced Himi-chan to spare you the humiliation of being "caught" dressed in a magical cat-girl dress, even if only to preserve my own sanity, I think you should stop yourself before I decide to let her do it anyway."

Well aware that Himiko would actually do what she had suggested initially, and that Izuku would allow let her do it if he felt irritated enough, Katsuki had no choice but to back down. Katsuki made no effort to hide his displeasure though as he cursed loudly while walking away from the "two biggest fucking pains in the ass" he had ever met.

-Later that day…-

Izuku and Himiko were walking back home together from their middle school school as usual when Himiko asked Izuku, "Say, Izu-kun, are you really going to apply to U.A.?"

Nodding in confirmation that he was indeed going to apply for U.A. high school, the most prestigious hero high school in Japan where All Might himself had graduated from, Izuku replied, "Being a hero has always been a dream of mine for as long as I can remember. Even if my reasons for being a hero have changed over the years, it is still my number one dream." Indeed, Izuku's first desire was to be a cool hero who would save people and bring them hope with just a smile. That desire changed on the day he first discovered his quirked and became more refined after saving Himiko from her abusive family life. He currently wanted to be a hero to prove that people with monstrous quirks, villainous quirks or even without quirks can become heroes who are able to save others through effort, dedication and the will to protect the innocent.

Seeing that Izuku was adamant of applying into the school which had an infamously small rate of successful applications, Himiko said, "If that's the case, I'm going to apply too." Himiko then wore a cheeky grin as she added, "Someone has to keep an eye for you after all!"

Amused by her statement, Izuku replied, "So says the girl whom I had to save from Baka-gou for the umpteenth time."

Amused by Izuku's mock-deadpan response, Himiko replied, "The same girl who has the testicular fortitude to stand up to that jerk who dared to bully my cute little brother."

Impressed that Himiko actually understood the term, "testicular fortitude", Izuku replied, "I'm only a few months younger than you and I'm pretty sure I'm more than twice your size at this point."

Himiko playfully blew a raspberry at Izuku and argued, "You're still my younger brother and I still remember how much of a cry-baby you used to be."

Knowing full well that he was indeed quite a cry-baby back then, with tear ducts that would give his sweat glands a run or their money, Izuku could not deny her claim and blushed in embarrassment while Himiko giggled at him…

"To be perfectly honest, I'm still not really sure what a real hero really is. Most of the time, just I do the very best I can, if not more, and hope that it would be enough to protect and save the innocent."

-Meanwhile…-

To say that Bakugou Katsuki hated the very idea of losing was like saying an obvious truth of the universe. Even before he gained his quirk, Katsuki refused to lose to anyone including boys even bigger than him. The fact that Katski would actually back down when facing Izuku and his apparently crazy stepsister was therefore a mystery to many of his peers including his newest group of "friends". Needless to say, Katsuki refused to tell anyone his reasons for backing down or even admit that he had basically lost to them on more than one occasion. In spite of Katsuki's "loses", no one doubted his potential as a hero as Izuku and Himiko were rarely apart and possessed their own combat skills which were nothing to sneeze at.

It was also a common truth that Katsuki did not have any real friends. Oh, he had his "friends" who were all too happy to support him in picking fights with other people as long as they were confident of winning. The thing was, Katsuki preferred picking fights with people who could actually fight back which also revealed just how cowardly his "friends" really were. For example, his "friends" refused to fight with Izuku simply because he looked intimidating due to his size and admittedly monstrous appearance. They even refused to fight with Himiko, a girl who did not have a combat-orientated quirk, simply because she was not afraid of fighting them with painful results. As strange and twisted as the idea was, both Izuku and Himiko were the closest people he had for real friends.

Still furious that he was forced to back down from a fight with Izuku and his sister again, Katsuki suddenly saw a cat crossing his path and paused as he recalled what happened not long after Izuku knocked him out…

-Start of flashback…-

Katsuki was not merely furious. He was explosively murderous with rage at the fact that Izuku, the "worthless cry-baby Deku", actually managed to knock him out with a single punch. Katsuki was so enraged that even his kindergarten teachers decided to stay away from him as he searched high and low for Izuku as soon as he returned to the kindergarten. By hook or by crook, Katsuki was going to have his revenge.

At least, that was the original plan. Izuku was even more withdrawn than before and everyone else in the kindergarten kept their distance from the boy ever since he attacked Katsuki. As a result, no one knew where Izuku went during unsupervised playtime. It certainly did not help that Izuku was probably using his newfound quirk to sneakily get away from public attention. Even so, Katsuki refused to give up.

While Katsuki was on a warpath, he saw a cat, the very same cat which Izuku actually protected with his own body before punching Katsuki in the face in retaliation. Katsuki was tempted to attack the cat out of spite when he noticed that it was carrying tiny kitten in its mouth. As cruel as he could be, Katsuki was not so heartless as to callously attack a kitten and its mother.

Although Katsuki had no intention of attacking the cat which was carrying its kitten, Katsuki decided to follow it as he felt it was his best chance to find Izuku and get his revenge. However, as soon as the cat noticed Katsuki, it quickly ran away, thus frustrating the short-tempered boy even further. Since he was unable to follow the cat to wherever it was going, he decided to go to where the cat had come from instead.

Two minutes and a couple of soft mews later, both Katsuki and Izuku wore shocked expressions as Katsuki stared at Izuku who was apparently taking care of three tiny kittens. As Katsuki stared at Izuku, he noticed a number of things around the tailed boy including an opened lunchbox, an emptied packet of milk and even a towel which the kitten were resting on. In hindsight, Katsuki should have realised that Izuku only attacked him in retaliation of attacking the cat but he was only five years old at the time.

As aggressive as Katsuki was, he was smart enough to realise that Izuku was taking care of the cat and its kittens. Forced to realise how much the cat and its kittens meant to Izuku and how wrong it would be to harm the said kittens or their mother, Katsuki was forced to do something he never thought he would ever do. He gave up his decision to have his revenge on Izuku.

As Izuku, who was very thankful that the mother cat had decided to move its kittens to a different place away from possible harm that day, warily watched Katsuki who turned around to leave, the bitterly angry blond boy swore that he would defeat him the next time they had a fight…

-End of flashback…-

Katsuki gritted his teeth in displeasure as he knew that he had yet to actually defeat Izuku in a proper fight. Granted, Izuku had his crazy stepsister, Himiko, but it was an undeniable fact that Izuku had only grown stronger over the years. The fact that Izuku could take his explosive attacks so calmly earlier that day proved Katsuki's suspicions of Izuku's actual fighting ability. Combined with Izuku's frighteningly detailed and accurate analytical abilities, which Katsuki found out through overhearing Izuku's unnerving mumblings about the quirks of other people, Izuku's abilities in combat were nothing to joke about. In addition, as much as Katsuki hated to admit it, Himiko was exceptionally talented in fighting in spite of fighting as though she was a quirkless individual. It would not be strange if Izuku and Himiko sparred at least once in a while.

In spite of the odds against him, Katsuki was determined to attend U.A. high school. He was quite certain that both Izuku and Himiko would join U.A. as well and were quite likely to enter the hero course. However, he would be damned before letting them steal his spot as the next number one hero without a fight.

"Men are not created equal, but that does not mean that no one can challenge the status quo, for better or for worse."

-Back to Izuku and Himiko…-

Izuku was having dinner with both Himiko and Inko. Still and attractive woman in spite of being a slightly overweight mother of two teenage children, Inko smiled happily as she watched her two children enjoy their dinner. Oh, her life was pretty stressful at times due to worrying about her son and stepdaughter but she would not give up her two beloved children for anything else the world could offer.

Himiko, who was messily eating her dinner, was not really interested in becoming a hero. However, she was determined to help her beloved stepbrother to become a hero and was not at all against the idea of helping other people, especially children. It was the least she could do for the boy who basically saved her from her abusive single mother and gave her a new happier life. Also, she would be damned before letting some random girl take away her little brother's affections without getting her approval first.

Izuku, who was understandably eating enough food to feed three people his own age due to his large body size and quirk, was looking forward to the future. He knew that both he and his sister would face terrible challenges ahead, and not necessarily from villains either due to his appearance and her admittedly crazy personality. However, with his loving and supportive family, including his father who was still working overseas to support the rest of the family, Izuku was certain that he and Himiko will have a future as heroes…

"This is a story of how my sister and I, along with our classmates, became some of the greatest heroes of our time. This is a story of heroism and being the best we can be to save and inspire others."

-End Chapter-

Author's Notes:

This is the first of a series of one shots featuring alternate versions of Izuku. I have plans for other versions of Izuku including the following:

1. Furry Izuku: Izuku looks like a cute furry character such as Nanachi from Made in Abyss. Expect heroic cuteness!

2. Symbiotic Izuku: Izuku is bonded with a symbiote-like female character. Yes, a female character.

3. Noumu-ed Izuku: Izuku gets hit by an experimental noumu-fication drug (which is meant to be used as a weapon of terror) and becomes an intelligent hero-noumu.

4. Multi-Quirk Izuku: Izuku actually has a quirk. It is just that its ability is to bring out the full potential of a quirk that is given to him, or quirks in the case of One For All. (Inspired by Quirks for Deku at/s/12031421/…)

Also, in case anyone is worried, this story will have a continuation, provided that I can get my lazy butt into writing.

Until next time, go beyond, plus ultra!