Hero Academia: Fate/Stay Night


Disclaimer:
Boku no Hero Academia is owned by Kohei Horikoshi and Bones
Fate/Stay Night is owned by Type Moon


Hello and welcome to NEW experimental fanfic of Boku no Hero Academia, in which a new inspiration popped into my head in an unexpected way, and for the first time, I will be incorporating a combination of survival-horror and suspense elements here as I find it quite challenging, as most of my other Hero Academia fics are purely romantic and comedic, and here this is where I will put the characters of this series to the test.

This fic came about after I re-watched Fate/Stay Night (the first anime and Unlimited Blade Works TV), and an idea popped into my head as a scenario filled me in which what would happen if some selected characters of My Hero Academia encounter the characters of Fate/Stay Night.

That scenario inspired me and decided to blend the two series together and see where this would go…in which it was partly based on the Sports Festival arc of the Hero Academia anime.

Lastly, since this is a Hero Academia fic, the settings will be based here while using the series' timeline while FSN will be integrated here so as to blend the two series in this story…so think of this as a semi-AU…

Well then, read on and enjoy!


Ch. 1: Prologue

Fuyuki City...ten years ago...

The Fourth Holy Grail War took place around an unspecified era, supervised by Risei Kotomine. The corruption caused by Angra Mainyu took effect, allowing for the summoning of improper Servants like Gilles de Rais. The destruction of the Lesser Grail during the previous war led Jubstacheit von Einzbern to develop inside the body of a homunculus, leading to the creation of Irisviel von Einzbern. While the Holy Grail manifested, Kiritsugu Emiya, realizing that it could not grant his wish, effectively betrayed his Einzbern patrons by destroying it. The contents of it spilling out caused a large conflagration that killed five hundred people and destroyed 134 buildings. The only survivors of the participants were Kiritsugu, Kirei Kotomine, and Waver Velvet. Gilgamesh, through being incarnated by the mud of Angra Mainyu, also managed to still exist in the world.

Due to the inconclusive termination of the War, the Grail's failure to grant a wish to the selected victor, Kiritsugu, and the victor's subsequent destruction of the Grail, it resulted in the premature occurrence of the subsequent Fifth Holy Grail War only ten years later. The unexpended thaumaturgical energy accumulated through the elimination of Servants was recycled due to the destruction of the Lesser Grail before the Greater Grail could direct the accumulated mana to establish its pathway, thus trapping some of the unused mana within the Grail.

Kiritsugu had planned to demolish the ritual as of the proper scheduled time of the Fifth Heaven's Feel by arranging for the physical collapse of the Great Grail System before the originally estimated date. The process involved utilizing stocked dynamite and the manipulation of ley-lines to ensure a severe localized earthquake in the targeted area within thirty to forty years of the Fourth War. The premature occurrence of the Fifth Holy Grail War and the subsequent destruction of the ritual means that it no longer has a purpose.

-x-

The scene shifts at an apartment, where a five-year old boy, sporting green, curly hair and having a freckled face, is watching a live footage on his computer, where several pro heroes are seen doing heroic deeds like stopping crime and saving people. The little boy is so fixated that he aspires to become a hero himself when he grows up.

The boy is identified as Izuku Midoriya, and he appeared to be an avid fan of pro hero All-Might. As the little boy is watching in awe and admiration, his mother, Inko, smiled as she felt that her son has found inspiration, and there the little boy told his mom that he wants to become a hero like All-Might, which his mom smiled and said he would one day become one.

"Mom! Look!"

"Yes?"

"All-Might is amazing, right?"

"Yes, izuku."

"Can I become like him?"

"I'm sure you would."

"I'm going to become a hero when I grow up!"

"Yes, Izuku."

However, as fate would make itself apparent, the Midoriya family learned from a doctor that Izuku is Quirkless, and told Inko that they should just give it up, and accept the fact that Izuku is just an ordinary boy and can never become a pro hero, which Inko was in disbelief, asking the doctor how is this possible as she and her husband possess Quirks.

However, the doctor said that Izuku is one of the rare cases where he is born Quirkless and tells her that Izuku should just become an ordinary citizen, attend an ordinary school and live an ordinary life, and tells her that this is how life is, nothing more.

Izuku is heart-broken at this as he feels that his dreams will never be achieved and Inko consoled her son, seeing that he is depressed at this and apologized to her son, though all he could do is cry silently at this as he is forced to face the harsh truth and reality.

"M-mom…"

"Izuku…?"

"C-can…I…still be…a hero…?"

"Izuku…"

"…"

"Oh, Izuku! I'm sorry!"

"…"

"I'm sorry!"

-x-

In the years that passed, Midoriya's status as a Quirkless became known to his neighborhood, and neighborhood bullies uses their Quirk to torment him, mentally, and physically, to the point of badly injuring him, and as a battered and bleeding Midoriya lay on the ground, the bullies are ready to inflict more harm on the hapless boy, seeing that he could not fight back due to lacking a Quirk.

"Hah!"

"Look at that!"

"He really is Quirkless!"

"He couldn't even retaliate!"

"You're a loser!"

"You should commit suicide!"

"Yeah, you're a failure!"

"A trash!"

-x-

Ten years later...

The scene shifts to Fuyuki City, where the town is appeared to be moving on after the incident where many died and the true cause of that incident went in secret, and it is there that some of the would-be "participants" of the upcoming 5th Holy Grail Wars are making their moves to obtain their preferred servants, and there you can see that the scene shows that two of the participants are in the process of preparing themselves for the Grail war by summoning their intended servants.

-x-

At an unidentified area, a person chanted a summoning spell to summon a servant, and that servant would turn out to be Caster. Caster was originally summoned by a magus from the Mage's Association before the start of the Holy Grail War. He was a legitimate magus who was in his thirties with a medium build and few other noteworthy characteristics. He had no drive for combat, but still dreamed of victory while waiting for the other Masters to kill each other. She quickly gave up on him within a few days while planning to sever her connection to him. She made him use his Command Spells on meaningless things, so that he would have no control over her. She acted as an obedient Servant and filled the man's conceit in order to make him believe that she would still be faithful without them, and upon using his third Command Spell, she killed him with Rule Breaker because she did not like the fact that the contract still existed.

Because of her actions, she knew that she would disappear without a Master, and on the verge of her spiritual body dissipating, she stumbled upon Souichirou Kuzuki at the foot of the Ryuudouji Temple. Caster begged this stranger for his help; Souichirou obliged without hesitation, forming a new contract with her. He then brought Caster into the temple and attended to her recovery. Caster quickly fell in love with Souichirou, for he was the first man to show her genuine kindness, dedication and loyalty. Her primary objective shifted from obtaining the Holy Grail for herself to simply preserving their short time together. To achieve this end, she siphoned Mana from the populace of Fuyuki City and fortified her position on Mount Enzou.

She is known to others as an honored guest of the Ryuudou family, permitted to live at their temple until the preparations for her marriage have been finalized. She is thought of as a gorgeous and talented yet mysterious woman of high stature. Her presence has attracted the attention of many trainee monks.

After an unspecified number of days and/or weeks Caster found and killed the regular master for Assassin before he could do the summoning. She used the mountain gate as a catalyst to summon a fake servant Assassin known as Sasaki Kojirou.

-x-

At the Matou manor, Sakura Matou, who spent years of "torturous tutelage" from Zouken Matou, did a summoning ritual and ended up summoning Rider, and she has become a Master, though because of her gentle nature, she is unsure on whether to participate in the upcoming Fifth Holy Grail War or not. However, Rider later became the Servant of Shinji when Sakura, pressured by Shinji, yielded her Master's right to him.

Despite serving a "new Master", Rider holds no love for Shinji, seeing him as vile and predatory, but obeys his commands as a dutiful Servant. Because of their similar backgrounds, she is empathetic of Sakura, and seeks to protect her whenever shown when Shinji bullies and antagonizes Sakura at every opportunity, and Rider was unable to intervene because of her status as Shinji's servant.

-x-

Elsewhere, the scene shows that another summoning ritual took place, and this time it is shown that Berserker is initially summoned by Ilya Von Einzbern in the Einzbern family castle two months before the start of the Holy Grail War. He is specifically summoned as Berserker, utilizing a slab of stone from a temple of Heracles for a catalyst. Choosing him for his vast strength and choosing the class to have a puppet unable to betray them like Kiritsugu in the previous war, they begin to prepare Ilya and Berserker as the strongest Master and Servant pair. Lacking any support from the Grail, Ilya is forced to provide the entirety of his energy, keeping her in constant pain.

Part of their training involves abandoning them in the Einzbern wasteyard, where only Berserker can keep them alive. He attacks any enemies, and she bears the pain of his movements draining her life away. The process slowly becomes special to him without his knowing. She hates whining, so she insults him instead, scorning his ugliness and cursing his existence. His existence causes her to suffer, so she hates him and keeps him in constant madness as a form of revenge. He knows it is only her desperate opposition, a way to hide the fact that she is fated to have nothing.

The burden on her begins to lessen as the Grail begins to show signs of appearing. After a particularly desperate battle where his body is severely torn from fending off wolves, where she began to scream for his sake rather than her own and endure the pain of his movement for his sake, she acknowledges him with the words: "You're strong, Berserker." He is covered in the blood of the beasts and she is covered in her own blood, and seeing her resting on him while crying tears of anguish, he realizes that he is the only one she has talked to in the entire castle.

After arriving in Fuyuki, Ilya and Berserker engage Lancer at some undetermined point. Lancer then leaves the battle unfinished in accordance with the command from his Master, Kirei Kotomine. They also attempt to storm Ryuudouji Temple to slay Caster, but Berserker is forced back by Assassin and Caster's magecraft weighing him down.

-x-

Tokyo.

The scene then zoomed further and you can see that the scene shows that the place being shown is Tokyo, which is bustling with people who are walking the busy streets, some riding vehicles, and others riding on bicycles. There are several types of people seen on the streets; adults, children, and even infants being carried by their parents. Businessmen, businesswomen, students, policemen, all kinds of persons are seen, and they were doing their usual activities as if they do not mind it.

Shops are open and the merchants are selling their merchandise and are enticing people to buy them in hopes of earning money. It was a typical day and it seems that people today are lively and felt that their lives are full of blessings and couldn't ask for anything more, as some are happy with stable jobs, students studying in the best schools, and more, and some even chatted with one another feeling that today is a good day.

"Hey!"

"Nice day, isn't it?"

"Today is a good day..."

"I love my job..."

"Life is so good..."

"I wish I have a good day..."

"Lots of money..."

"Lots of girls..."

-x-

The scene later shifts to a certain area, where business is thriving the area is frequently being besieged by customers which are a mix of adults and teenagers, and they appeared to be avid collectors, as they are looking and buying second-hand items which are technological in nature, and their reasons for patronizing the said shops are purely economical in nature - cheaper prices and practicality. You can see several shops selling HOT items for cheaper prices, such as smartphones, android tablets and even laptops, and despite being second-hand items, they appeared to be in good working conditions, and some of the customers are willing to buy them as long as their desired items are working fine as well as to save money for budgetary reasons, and the merchants are using subtle means in enticing passing customers.

"Hello...please by our items..."

"They are cheaper..."

"...they are in good working condition..."

"You can try them if you like..."

"I promise you will like them..."

"I promise you will get your money's worth..."

"Here are the items on our display..."

"Pick the one you like..."

The area in question turns out to be Akihabara, and the area is thriving and many merchants set up shops to attract passing customers and entice them to buy their products by showing the items and offered cheaper prices while assuring them that the items are in good working condition, and their marketing strategy worked as some passing customers were intrigued after hearing that so e gadgets are being sold in cheaper prices, and they began asking the merchants what itens do they sell, and the merchants showed to the customers the items they are selling, ranging from smartphones to android tablets and even laptops.

Then the scene shifts to another nearby shop, where a merchant is also selling second-hand items, but unlike the other shops, this merchant is selling something else and is catering avid collectors, and the scene shifts inside the shop where you can see the items being sold, which turn out to be classic console units and games, all being displayed on the shelves, and one by one you can see the following consoles being on display, which are:

- Nintendo Famicom

- Super Famicom

- Sega Mega Drive

- Game Boy Color

- Game Boy Advance

- Neo Geo

- Sony Playstation

- Sega Saturn

- Nintendo 64

In a matter of minutes customers passed by the shop, and most of them are avid collectors and fans of video games, and they were immediately intrigued by the items on display and they looked at the items, as some appeared to be unaware that such ckassical consoles actually existed, and they began asking the merchants if those consoles and its games are really something to be owned, which the merchant nodded and assured to them that the classic games are RARE, and are fun to play with, saying that even with popular games today that are released on current consoles such as the Sony Playstation 4, the Microsoft X-Box One and the Nintendo Wii, the consoles on display are even COOLER due to its nostalgia factor.

"Are they really cool compared to today's consoles?"

"Yes...they ate cool..."

"Seriously?"

"Yes, sir...they are the very first games...and they are the popular ones in its heydays...and they are RARE to find..."

"Hmm..."

"Would you like to try them...?"

"..."

"I promise you will not regret it..."

By then a passing customer passed by the shop, and he appeared to be a businessman in his mid 20's, and saw the items on display and became intrigued by it and went inside the shop, lookin at the consoles on display, and began inquiring about which console is the best to purchase, as he is wondering which one he should choose, and the merchant obliges as he patiently explained each of the consoles' abilities and specialties, and soon he recommended to the customer to buy the Super Famicom, saying that aside from having a lot of RARE games, which are in cartridge form, it was the most popular and well-sold consoles in its heydays, and even said that several games are colorful in terms of graphics and that there a lot of popular games to choose from.

The customer apoeared to be enticed yet he wanted to be sure, so he asked the merchant to give him a demonstration, and the merchant obliges, and brought out the Super Famicom and attached it to a flat-screen TV and inserted a cartridge and activated it, and the customer watched in awe seeing that the merchant was not lying, and after testing out several games, the customer is pleased and agreed to purchase the console, and the merchant happily obliges as he prepared a box to put the Super Famicom in and said that as his way of showing thanks, he will give 50 Super Famicom games for 70% discount, which the customer is pleased with this.

"Really? You will sell the games at 70% discount?"

"Yes, sir..."

"Thanks!"

"Please choose the games that you like..."

"I'll take these..."

"Here you go..."

"Thanks!"

"Have a good day, sir..."

After that, the customer got what he wanted, paid the merchant and left, and the other customers were awed in seeing that the merchant had sold a popular classic console to an adult, and they began asking the merchant for opinion on which console is the best besides the Super Famicom, and merchant began to show out the other consoles and offered to show its power and the number of games that are available, and after seeing them, the customers lined up and brought out their money and ordered their desired consoles and its games.

"I want the Sega Mega Drive!"

"The Neo Geo!"

"Give me the Nintendo 64!"

"I want the Game Boy Advance!"

"I want the Nintendo Famicom!"

"I want all of it!"

"Everyone...calm down...for a line and I will accommodate you all..."

"Hurry up, then!"

-x-

In the years that passed, Midoriya is set to graduate middle school, and there he met All Might, where a series of events took place, and there All Might became impressed when Midoriya went and risked his life to save Katsuki Bakugo from Sludge Villain despite being Quirkless, and though All Might eventually went to save the two boys, the pro hero told Midoriya in a private meeting that the boy can become a pro hero, much to Midoriya's surprise.

"R-really…?"

"Yes."

"I can be a hero…?"

"Yes, you can. You just proved it."

"…"

"But you need to train your body. Are you up to the challenge, boy?"

"Yes."

"Then let us commence the training…"

In a span of 10 months, All Might trained Midoriya until his body was strengthened to a degree and the pro hero passed his Quirk, One-For-All to Midroiya, and there the now 15-year old boy began his quest to become a pro hero, and enrolled at UA High.

To Be Continued...


Hope you liked this opening chapter, as it served as an introductory part where the characters of Fate/Stay Night and Hero Academia are being prepped…though only Midoriya and All Might are the only characters to appear.

Since this happened around episode 1 of the MHA anime, it fits whilst only Ilya, Berserker and Lancer are the ones representing the FSN side.

More characters of the two series will appear in the next chapters…


Preview:

The story commences as the first story arc will feature the chosen participants of the new Battle For The Holy Grail, along with new servants appearing, which also includes the characters of Hero Academia getting servants of their own…

See you in 6-8 weeks (around late May or early June)…

Reviews are welcomed, but needed…