A/N: I don't own Boku no Hero Academia or Fate/Stay night!

You don't need any in-dept knowledge of the Nasuverse, just the very basic.

『 Have you heard the legends of the Heroes of Old? From the times when Hero's strength was measured by the heart, not the might of arms? 』

All men are not created equal. That's the truth Midoriya Izuku learned at the age of four. At the age when majority of the mankind develops a strange power called 'Quirk.' You see, these unique powers are what determines one's worth and place in the society. And with a powerful quirk, one can even become a hero!

Yes, it is indeed possible to have a professional career as a hero. To battle villains, to save lives. That's a dream of many children. But to fulfil that dream, they need a powerful quirk. That's why every child eagerly awaits their fourth birthday; it's around this age that quirks usually manifest. For many, this is the important milestone in their lives.

It was for Izuku, too. Only in the worst way imaginable.

You see, Izuku longs to be a hero.

But in this day and age, a soul as bright as his has no chance of becoming one, unless he has a proper Quirk.

Which he does not.

A shame, truly.

『 It's not the Sword that makes the Knight. It's the Heart, the Kindness of the Soul. 』

There is mockery and laughter, whenever he mentioned his dream. There is the name-calling, mean comments. And of course, bullies. Including his former childhood friend, Bakugou Katsuki.

Or Kaa-chan, how Izuku used to call him. He still does, even if it annoys Bakugou. Maybe that's why Izuku does it. Or maybe it's a force of habit. It matters not.

Kaa-chan is probably the worst, out of all of his bullies. And there's no shortage of those. Kaa-chan's quirk, Explosion, hurts as much as his words. And Kaa-chan has no qualms using both.

To make the matters worse, the adults pretend not to see this. Mainly the school staff. They probably want to keep the school record clean of any problems, so they close their eyes and cover they years. That way, they don't have to acknowledge that there is something wrong with the way the children behave. Because that doesn't happen, not in this school. Right? RiGhT!?

Izuku's mother, however, that's a different story altogether. Midoriya Inko is a kind soul, much like her son. She always cries when she sees him covered in bruises and cuts. And every time, he tells her it's just his own clumsiness that's at fault. He feels bad for lying, but Katskuki's mother is Inko's best friend, and Izuku knows that telling her Katsuki bullies him would strain that friendship. So he swallows his pain and tears, and lies to his mother once again.

『O, Hero. How swiftly your End approaches.』

Izuku finds solace in the library. He can work here, in relative peace, on his notes and quirk analysis. Because even if he doesn't have a quirk of his own, he still finds them extremely interesting, and nothing is stopping him from learning all about them. So he does just that.

He learns about the quirk classification, about the theory behind them. About the quirks of the Pro-Heroes. After all, Izuku is a big hero fanboy. The "modern" heroes fanboy, that is. He knows nothing about the Legends that resonate throughout the history of mankind. Just like for the rest of this world, they are no longer important.

A shame, indeed…

Izuku's visits to the library always follow the same pattern. He goes in, sits down, and delves into the theories and analysis, often muttering or frantically scribing down into his notepad. The librarian always just smiles gently; Izuku truly is a wonderful child. Too bad the people can't look past his quirkless status.

This time, however, something is different. The pattern changes, just a tiny bit; a small ripple on an otherwise calm pond surface. But it's enough to change the course of things. Sometimes, even the flap of butterfly's wings can create hurricanes.

What happens is – Izuku finds a stack of cards, all but abandoned, on one of the shelves. They are old, brownish-red in colour, with golden details. He takes them down from the shelf to get a better look at them. He's curious by nature, after all.

After a closer inspection, he deduces they're Tarot cards. Which would explain why they are so worn out; in this day and age, nobody really believes in fortune being read from cards, not when there are clairvoyance quirks.

Still, Izuku marvels at their beauty. Even if a bit faded, the golden details are still prominent, the designs elaborate and drawn with precision. The other sides of the cards depict a humanoid figure. Each is different, either by position or by the items that surround the figure. Izuku likes them very much, but they're not his to keep, so he takes them to the librarian.

"Excuse me," he calls a bit nervously after the librarian, "but I found these on one of the shelves, what should I do with them?"

The librarian glances at the cards and smiles.

"Oh, these? They've been here for as long as I remember, nobody ever came back for them. You can keep them, if you want to."

"Really?" Izuku is surprised, but excited at the same time. He isn't even sure why, those are just some old cards.

"Yes. They're better of with you than lying on the shelf here, collecting dust." The librarian smiles again, gently.

"Thank you very much!" Izuku smiles gratefully and puts the cards in his bag. He will look at them again when he arrives home.

And as it often is, he won't truly discover their significance until much, much later.

『 And should the Fires dim, then we all shall fall into the Darkness…』

"Why don't you take a swan dive off the roof? Maybe you'll get a quirk in the next life!"

Those words continue to haunt Izuku as he stands on the school roof. Kaa-chan said them with a voice full of mockery and with a sneer on his face. They are horrible word to said to someone, regardless of how seriously were they meant. They are all children, still.

What's even worse, Izuku actually considers taking this 'advice'. He's tired of all the laughter and mockery; everybody has a breaking point and Izuku is slowly reaching his. He clenches his hands into fists. He can't take much more of the mean words, they hurt way more than the punches and kicks. He steps closer to the edge of the roof. He can end it right now. All the pain would go away.

He's preparing to take another step, the one that'll seal his fate forever, when he hears a voice:

"That is the least logical step you can take right now."

Izuku franticly looks around, startled, but the roof is empty.

"What… who said that?"

The only answer he gets is a light chuckle.

"Ah, why don't you step away from the edge, and use that brain of yours for a change?"

Izuku does so, while searching furiously for the owner of the voice. Is somebody hiding somewhere on the roof?

The voice answers his unspoken question, clearly amused.

"Your see, but you do not observe. There's a quite clear distinction between those."

"That's not helpful!" Izuku cries, a bit hysterical. He has no idea if he's going crazy and that voice exists only in his head, or if it's something else. He runs his fingers through his hair, trying to calm his nerves down. As he lowers his hand, he notices that there's a faint light coming from the pocket of his pants. He reaches in, and pulls out the deck of Tarot card he barely remembers taking this morning with him, for whatever reason. The card on top, depicting a man in a jester hat, is glowing.

Only, the picture on the card has changed. Izuku stares at the cards, baffled. The card no longer looks so worn out, in fact, it seems brand new, the colours rich. The picture now depicts a man with a distinctive features, not just a humanoid silhouette. The man has a short dark hair, seemingly bluish, and pale skin. His clothes are odd: a long brown coat, clearly out of this century and a pair of white gloves. The man in the picture is holding a pipe, and there are magnifying glasses all around him. There is the number '0' above the man's head and the words 'The Fool', written below.

Izuku has no idea what to think about that. Has he gone crazy? Is he seeing things?

"Found me at last. See? It's not that hard when you look properly at what is around you."

The voice is somehow connected to the change of the card's picture, Izuku just knows it. Only… this is not a quirk, is it? He's never heard of a quirk that would do something like that. Whatever that is.

He checks the other cards, none of them has changed, only the first one. Izuku looks at it again, unsure what to do, or even what to think. All of this is so weird. But he figures that the voice may have the answers he needs. So he should probably ask. Easier said than done, however.

It takes him several minutes to find the courage to ask; the voice says nothing during all this time, but Izuku is somehow sure it's still there. And probably very amused.

"What…" Izuku swallows, suddenly very nervous, "does this all mean?"

"Ah. But that's elementary, my dear."

A/N: This is the crossover I wanted but couldn't find, so I wrote my own. Kind of. It was originally supposed to me a bit more along the lines of Prisma Illya class cards, until I realised I could never choose just seven servants, or even just one… So here we are, with me using the Fate/Journey Tarot cards as the base. This is also kind of an experiment, let me know what you thing about it!

Anyways. To the problem on hand: These cards are awesome, but some of the servants are exclusive to the Nasuverse, so I had to replace them. And I still hadn't filled up all the spots, so maybe you can help me with that. Here's the list of cards than don't have a servant fixed to them yet:

III. The Empress (Originally had Ishtar), VI. The Lovers (originally had Iri and Kiritsugu), IX. The Hermit – not sure if I should keep Sasaki Kojiro or go for Mushashi instead, X. The Wheel of Fortune (Originally had Waver) I'm thinking King David, because I like his design or Queen of Sheba, XIV. Temperance (originally had Ryougi Shiki), XV. The Devil – not sure if I should keep Shuten Doji, XVII. The Star – I'm not really sure about Andersen