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the plague hero

Summary:

Izuku has never received support from other people, on the day when his idol, hero number 1 destroyed his dream and Bakugo said to throw himself off the roof he finally broke down, but what happens if he meets someone who was also once a hero for his people, what if he meets someone who finally got free from the grasp of a rotten god and shares his desire to protect people?

What happens if Izuku becomes a hero not because of the whim of the almighty, but because of his fortitude and the strength of the fourteenth primarch, Mortarion? And will he destroy the current world by creating a place more terrifying than Barbarus or transform it into something great?

Notes:

Yes, I made another fic without finishing another one, but this one is needed more like beating the canon, Izuku will change much more than in "hero from blood angels"

(See the end of the work for more notes.)

Chapter Text

Mortarion hated what he was, or rather what he had become. Contrary to the opinion of many who tried to find out the reason for his betrayal, it turned out to be painfully simple.

Freedom, that's what Mortarion valued the most, and when the Emperor killed Necar, he had no more opportunity to avenge the years of slavery and he harbored a grudge against his father, but even though it was serious, it was not to such an extent as to kill his sons or turn into... this. Typhus was able to convince and looking back, he always noticed something "wrong" in him, he just didn't pay attention, but in vain.

Now the primarch of the Death Guard has a chance to save his soul from the vile hands of Nurgle and it is in Rabaut, now he stood in front of his brother, the detachments of the sisters of silence surrounded and Mortarion no longer hears the voice of the father of all diseases. The most important stage of his plan has come, even though his body is invaded by diseases, but his mind is clean enough to hide various plans from his tormentor.

So we met, brother- Mortarion said, his gaze fell on their father's sword, so everything will become even easier

And I'm here to kill you- Robout said, disgusted by the way his brother looked

I know, and I hope you will do it - Mortarion screamed, his brother stood motionless, waiting for a trick

I know what you're thinking, but trust me, that's what I said. When I agreed to serve my father, I really had a grudge against him, but I trusted Typhus too much and came to betrayal because of his words and the words of Horus. I never wanted to become such a vile creature, as well as a tyrant that has no will over his body. Kill me brother and get it over with before my "grandfather" interfered- Mortarion said, as proof of his words, he held the scythe next to him but not holding it in his hands, and the gun was far enough away that it was impossible to reach him in time.

Robout looked into Mortarion's eyes, looking for a trick in his words and actions, but did not find it, he began to slowly approach him, the lord of death stood motionless, not preventing him from raising the sword over his head.

At that moment, Mortarion died and his soul began to be carried away into the warp currents to Nurgle's garden, but the golden light prevented this from happening by destroying the creatures of the immaterium. Instead, Mortarion's soul traveled far, much further than he could have imagined.

 

Izuku had a normal day, peer violence, ignoring harassment, teachers who sometimes joined in on their own, in general, an ordinary day until Kach-Bakugo told him to "swan jump off the roof", in general, an ordinary day. Of course Izuku wouldn't jump off, but then he realized that his "friend" never treasured him, it was painful but bearable, enough to survive it.

If mom had only started paying attention to him, since her father left, she became more and more distant, it seemed more and more that he was a stranger in this house, she did not beat him! of course it's not! But nevertheless.

When he was attacked by a dirty villain and was saved by the almighty, his joy knew no bounds! The Almighty himself! But he didn't have time to ask the question that had tormented him all his life.

The Almighty... All my life I've been mocked for wanting to be a hero, I want to save people and make them happy just like you! But I don't have a quirk. Almighty, if I don't have quirks, can I become a hero?- Izuku asked, hoping for an answer, maybe he will have to make more, much more effort, but he will cope, no matter what

No, you can't be a hero. Look, it's too dangerous and you don't have a quirk for it, so be realistic. Perhaps the police and doctors do not receive the same attention and respect, but they also do important work - with these words, the Almighty left, leaving Izuka alone

 

Mortarion in his journey came to a planet that seemed to be a degraded world and he was glad that the streams of immaterium brought him here, albeit not an ideal but not a bad place, but since he no longer had a physical body, he needed to find a new one, but a dead person would not do, no, he needed a living one and someone who wanted to let him in into myself.

Therefore, Mortarion began to look for the person closest to him, fortitude was a priority for him, in the end, he was tired of being a hostage to the body of some monster, and if something goes wrong, his strength will be in the hands of a dangerous person.

Mortarion found what he was looking for and apparently the man was dying, it was perfect, the one who is on the verge between life and death is better amenable to words! He saw a child that was slowly suffocating in a strange slush, he was saved... Perhaps it was the strangest dressed man, but now the guy grabbed the man's pant leg and flew with them

Mortarion understood every word said as he already understood by the "almighty" and it infuriated him, how dare he even think that in order to protect people it is necessary to have some kind of "quirk"?! Mortarion has seen ordinary people for years who had the same spirit as the child and they did not flinch protecting the innocent, and this nobody even knows the boy's name but has already decided that he is unworthy!

Mortarion saw how the boy's hope was fading, how the light in his eyes was slowly fading, joke or not, but it looked the same as his brother Lorgar described the burning of the Monarchy. Therefore, his time has come, it is necessary to intervene.

Izuku wanted to cry, but he had to go home,
the almighty always said that everyone could become a hero, but it seems even he didn't believe in him, it was painful, if it hadn't collapsed at once, on the same day when Bakugo told him to die, he wouldn't have broken. Now no, he was tired to fight and he didn't like that while other children get everything out of life because they were lucky to be born with a quirk when he got nothing but pain, if only he had the strength....

The child...- said the shadow, terrifying, a giant monster that towered above the Almighty, Izuku saw this creature and screamed, but stopped when he realized that they did not want to attack him

I saw and heard everything that the "almighty" said, this bastard doesn't even know you, but he already said "no", he has no right to tell you this - said the shadow, the voice seemed to ooze poison at the very thought of the hero

I want to know something, child, when you said you wanted to be a hero, what did you mean?- Mortarion asked, he wanted to know the answer

I... I.. I wanted to be like the almighty, save people with a smile on their face and make them feel safe next to me, but the almighty said... -Izuku said softly, he was immediately interrupted

No! do not pay attention to the opinion of this bastard, he deserves only humiliation - said Mortarion

But... He's the number one hero!- I was defending my former idol, Izuka

And he's the one who ruined your dreams. Do you want to know why I came to you? The answer is simple, I saw your spirit, your perseverance and faith in your ideals and your ideals... These are the ideals of a hero, a real hero- said Mortarion and he was not lying, even if the kid was weak in body, but his soul is very strong at such a young age

But... why are you telling me this?- Izuku asked

Because I have an offer for you, do you want the strength to become a hero?- Mortarion asked, he was impressed by the child's resilience and therefore had already chosen the person in front of him

And what is this offer?- Izuku asked cautiously, glad that they believed in him and realizing that there was a catch in all this.

My body is destroyed and the only thing left is my soul and part of my equipment tied to my soul. I need a body, there are forces that want to get my soul, but a corpse or a person with an unsuitable mind, will not do. Therefore, I was looking for someone who would be resistant to adversity and strong in spirit. I found you, you are the one who can get my power - explained Mortarion

What's the catch? You won't give me strength for nothing- Izuku understood that this is a deal with the devil and there is a catch here, but he couldn't suppress a feeling of happiness when he realized that someone believes in him

This is a mutually beneficial deal, you will get a body like a primarch and an intellect, I will get a guarantee that my soul will not be spoiled again, but there is one thing - said Mortarion

And what is it?- Izuku asked

It will most likely be very painful, besides, you will get a part of my memory so that you learn faster. I have done a lot of bad things and when you see all my atrocities, you will consider me a monster - explained Mortarion

But, with your strength, will I be able to protect people?- Izuku asked

Yes, once I saved a lot of people, then I fell and became this, but remember the choice is yours, I hate the idea of forcing people to do anything against their will- Mortarion said, although what he was trying to do was too similar to gal vorbak

Then what should I do?- Izuku asked

Open your soul to me, trust me and repeat the words after me - said Mortarion

That day Izuku Midoriya disappeared and a new, terrifying entity was born