Hello everyone, Me again.

How was your day? I hope it's going well and if not, it only reinforces my theory that life is a bitch.

I read the comments and would like to thank altron15 for the good options he raised. If I'm honest, I completely forgot about the existence of Skadi and a lot of possibilities appeared in my head but I can't use them all.

StarGazer2326's ideas were also interesting but I can't use them even if I wanted to because of my little script in my head but it would be something interesting to see.

Once again I'm going to need his help.

What partner do you want to choose for my Shirou? the classic ones (Rin, Sakura, or Saber), or...how about getting a little crazy with that? The possibilities are endless but I leave the decision in your hands and preferences.

If you don't want the fic to have romance, you can also tell me and I will slightly adjust the script I have written to make it exclusively action and adventure.

That's all for now and without further ado.

Enjoy the chapter.

"No thoughts" = speak

"No sound" = think

No future = memories


Fate/Celestial Sword

Chapter 5 - holy grail war. (1/2)

Life for Ryuunosuke Uryuu was very boring.

The customs of society were not prepared to understand their true tastes and passions.

Murder, kill, cut, cut-throat, torture and mutilate.

He considered himself a normal and very attractive man, his tastes did not present a problem for him since he kept them a secret but when he was able to carry out his first murder he could not stop.

Ecstasy.

He could not stop his thirst for blood and his desire to kill led him to commit many other crimes, he no longer cared about anything. The feeling of total freedom was fantastic and was made even better if I had a person to kill.

He was also someone with an open mind, willing to try new things.

"Summoning a demon couldn't be that easy," he complained as he finished preparing the magic circle.

It was not easy to find all the materials to be able to draw the circle, but he solved it by using blood from the sacrifices he prepared for his invocation.

A family of three.

"I didn't expect to be able to get so many so easily"

There were three chairs, initially they all had a hostage but the blood for the magic circle was not obtained alone. Two completely disfigured corpses were in the middle of the magic circle and one of the chairs was the son of those pieces of meat.

Food for the demon he will summon.

"Hahahaha, what a thrill"

It was time to start.

.

.

.

Having your chest pierced and all your organs destroyed was not a pleasant thing to experience, the only good thing was that it happened so quickly that the sensation did not continue for long.

" I feel tired "

Shirou didn't know that when you die you can still "feel", he imagined something more...boring if he was honest, something literal like sleeping without dreaming but forever or something like that.

Being able to have your senses in absolute emptiness was not comfortable and it was curious that I could hear someone talking.

Death?

Great was his surprise when he opened his eyes and saw a boy saying something about starting something. He was sitting and tied to a chair, the smell of the place was disastrous almost as if something was rotten.

" My qi? "

All his cultivation disappeared, and he literally returned to the initial state. His body shrank, his legs were small and his hands did not have the calluses from all his time practicing with his sword, they were almost the same as a baby's hand.

He looked for the cause of the horrendous smell and managed to find them.

Corpses.

Two people.

unrecognizable state.

and a bloody person.

Shirou didn't need anything else to determine that the boy was the cause of the state of those two people, his smiling state while he was bathed in blood made it very clear to Shirou that he was just a psychopath.

"Fill it, fill it, fill it, fill it-"

The ropes that tied him would be something easy to get rid of, with a little concentration, relaxing the muscles and correct breathing would be enough.

"I said it four times…or was it five?…oh, it was reciting once it was complete and repeating it five times"

His sense of smell noticed a change in the environment that he had never experienced, his most developed sense had never smelled that calming aroma but when it was combined with the smell of rot it became something even worse.

"Fill, fill, fill, fill, fill. "That was five."

A strange feeling enveloped him, his body became numb and he was incapacitated, it seemed that a gentle current of cold water flowed throughout his body and was affecting him in ways he did not know.

Careless.

"...are you awake?" The person responsible for the death of the two corpses noticed his movement "Oooh, you're awake...sorry for the inconvenience but I needed materials for my summoning ritual"

" What the hell are you talking about? " I wish I could ask but I couldn't, the strange process that his body was going through was not over yet.

"I managed to find a book on how to summon a demon in my family's warehouse, apparently They tried it but I didn't know anything about it... and I want to try it" The childish smile he put on was full of perversity "it looks really funny …I already lost forgiveness for killing your parents…well, can you die for the demon I will summon?"

" You caused the death of those two people…for fun? Shirou was furious at that moment, this monster was equal to the worst practitioners of the demonic faction.

At that moment he felt that the strange energy stopped and a sharp pain appeared on the back of his right hand, it seemed like he was being burned.

"shit…oh?"

A thick fog spread across the place, the small room they were in did not have enough air ducts where the fog could flow. The psychopath who had captured him was busy looking at the summoning circle in shock.

Shirou took advantage of that moment to free himself from his bonds, he was surprised when he could control his body so easily, the ropes fell smoothly to the ground just by relaxing his chest and arms so that they could reduce their size and a movement of his legs was enough to free himself.

"Double prize!"

Shirou attacked the psychopath's neck with the nearest chair but a black tentacle prevented him, Some strange writings stopped in front of him to protect him from the attack of the tentacle.

"I was summoned…you, who have called me…you, who have sought me…summoned within the Caster class vessel…I ask for your name…Master"

A man in dark robes and a look full of madness had appeared, his skin did not look good, his eyes seemed to come out of their sockets and his hunched posture along with his gloomy aura was enough for Shirou to understand that he was someone dangerous.

I wasn't the only one.

"Spirit of frost and snow, queen and mother of Scandinavia…I have answered the call in the Caster class vessel…I ask you…Are you my master?"

A woman in a purple dress and hair of the same color had appeared next to the gloomy man. The woman was the complete opposite of the careless man, with smooth skin, and silky hair, but what had caught the redhead's attention were her eyes.

Crimson red.

"I didn't expect to be able to summon two demons… hahaha, what a great emotion!" The psychopathic boy was ecstatic "I am Ryuunosuke Uryuu, your summoner, I prepared a snack for your arrival...how did you get out of your bonds?"

"Perfect…perfect!…you have managed to prepare a great ingredient for my subsistence-"

"It is clear that our invocation was not performed correctly…" the woman had interrupted the gloomy man and walked towards the redheaded minor to put him behind her in a protective manner "My master is not the same as yours and I will not allow you to put your hands on it." in it"

"I see…the state of my spiritual core is not complete but nothing alarming…misfortune…what misfortune!…for you"

"Hey!" Uryuu caught everyone's attention "I summoned you both, that child is your food!"

Shirou didn't understand what was happening, all that stuff about masters, summons and demons went beyond his understanding. He could feel a connection with the beautiful woman and the energy flowing through his body was also directed towards the woman.

The amount was not small.

"My master, the situation differs from a conventional summons…I don't feel any magical energy flowing from you…what a misfortune…"

"You may have summoned me but you are not my master since you are not suitable for me" the woman grabbed the bewildered redhead by the collar of his shirt "and I prefer to work away from filth"

The wall behind the redhead and the purplehead was destroyed. The woman quickly fled the scene and took her little master with her.

"Stall!" Uryuu's scream forced the gloomy man to launch his black tentacles to catch the duo.

Shirou observed how a wand had appeared in the woman's hand and with it, she drew something in the air. It was surprising to see that a letter or rune appeared in the air and it caught fire in a powerful fire that set the tentacles on fire.

That was the only attack that was launched at the duo and the woman flew into the sky with Shirou. The outside was illuminated by the moon and on the ground you could see millions of small points of light that turned the view into quite a spectacle.

It was beautiful.

.

.

.

.

It was an exciting thing to be summoned in a holy grail war, not for the desire but for the opportunity to see the outside and be able to fight against powerful warriors.

The thought was not her usual one but it was the fault of her incomplete spiritual core. If she could quantify the percentage of her spiritual core, she estimated that it was twenty percent of the total.

Her stats dropped to the minimum level, her territory creation was a measly C rank and her item construction was a D rank, She did not have her main ability which was the primal runes and the only ability that remained the same was her divine core.

The instability of its spiritual core meant that it was a matter of time before it destroyed itself.

That would happen with a normal Master.

"Now that we are in a calmer place I think we can introduce ourselves."

His master was a child, and that alone had put doubt on the grail's ability to choose with the masters. Crimson red hair, amber eyes, and no physical fitness.

She judged other aspects of his Master but had no complaints.

"It's better to keep you from knowing my real name for the safety of our team, just call me Caster"

"I'm Shirou, nice to meet you, Caster"

Skadi fell completely in love with the little boy's cuteness but Scathach noticed something completely different.

The characteristic that had caught Scatchat's attention the most was the amount of magical energy she was receiving, which was the reason why her spiritual core had not yet self-destructed.

The structure of its core was saturated with energy and prevented it from collapsing on its own.

"Master, if you don't mind, would you allow me to analyze your body?"

"Analyze my body?" Shirou cocked his head in doubt, "I have no problem, but you can call me by my name, I'm not comfortable with the title of master."

"Okay" she agreed, Scathach found all those formalities very annoying.

She took her time drawing the runes, she had to perform a complete and detailed analysis of everything she could from her master to know what she had to work with.

The age of her master made her doubt for a moment the amount of magical energy she was receiving. Was she connected to another source but the child was her master? Maybe her master was not her true anchor to support herself? Fewer questions and more action.

she complained again about the lack of her primordial runes but managed to complete her analysis spell. The information flowed from the runes to her head and great was her surprise at her discovery.

"...Ha, I figured so" A smile from ear to ear appeared on his face

"Did you find something wrong?"

"Quite the opposite master...quite the opposite"

She had her suspicions about her master's magical ability, the amount was too large and not at all similar to the standards of this time.

The ability to connect with nature through movement and breathing to turn your body into a complete magical circuit.

the spell that borders on the limit of true magic and allows the creation of your world through your soul.

The completely identical elemental affinity and origin that enhances the magecraft ability of the same element.

Perfect breathing and walking.

Reality marble.

Incarnation.

She doubted that her master was human but her analysis guarantees that he is. Her surprise was completely welcomed by the Servant, with the support of her Master she would have no problem recovering her spiritual core from the other Caster.

"We have the advantage Shirou, We have to plan a way to recover my spiritual core and then-"

"Forgive me for interrupting you but...I don't understand what's happening or what you're talking about." Shirou needed information about everything that was happening.

He was supposed to be dead but not only was he not dead but he returned to a childhood stage of his life, he was completely sure it was his original body but smaller.

What the hell?

He woke up in the middle of a demon summoning and was supposed to be the food of the summoned demon but two people appeared who didn't look like a demon at all and started talking about masters and servants, One of the two people had appeared saved him and They were now in an unoccupied house as he spoke to Caster.

"What are you? Where are we? Who was the man who had appeared next to you? And above all, what was that thing you just used?"

"Don't you know that you were chosen for the holy grail?" Caster grabbed his right hand to show him the tattoo. "These are the command spells that…that…one?"

Caster looked at the back of her master's hand and was very confused when she realized that she only had one command spell to use.

Everything suddenly became very complicated.

"This is shit"

"Don't worry master, I can get magical energy through other means"

Caster and Ryuunosuke could only watch as the woman fled with the child, the master was furious for losing one of his summons because of a child.

Well, never mind, at least I still had one.

"Hey demon, how about going murder some people to lighten the mood?" He no longer cared about what had happened, he just wanted a demon and he had one.

"Perfect, master…to stay on this plane of existence I need large amounts of magical energy, and blood is a good substitute" The demon's cross-eyed gaze was funny for Uryuu to see "But we have to prepare for war…I'm so grateful. to have such a compatible master…oooh, my Jeanne, we will be able to meet you again"

Ryuunosuke left the house and hoped that the demon would follow him, It was good to see that he could become invisible and talk to it with his mind, it would be amazing if everyone could see his demon but it would cause some problems to have so much attention.

"Show me lots of cool ways to kill, okay?"

It was time to do fun things.

"The Servant Caster was summoned but his summoning was not performed correctly…interesting"

"Haaa….aaarg…"

Kariya was struggling to endure the pain of maintaining Berserker, even with all his 'training' it wasn't enough to control him freely, his magical energy could barely keep up.

Watching the worm monster walk around him without caring about his condition- no, he was enjoying his suffering but he was more interested in the information he just got.

"It reminds me of the previous war and the strategy of the Edelfelt" The monster, the leader of the family, remembered the Casters with all their parameters broken in the middle of the previous war. He stopped his steps and looked at him "If you're lucky you might get the grail, hehehe."

The Matou leader's sadism had appeared and he tried to approach Kariya but the appearance of Berserk stopped him.

"Grrr."

The black knight's figure was imposing and demanded respect, the cracked black armor adding even more style to his image thanks to its large size. It was rare for Souken to see a Berserker servant so protective and "calm", the Berserkers of the previous wars were very busy destroying everything around them.

"...don't waste this opportunity...Sakura's training will stop during the period you participate in the war and you already know what will happen if you don't get the grail"

Kariya tried to stand up and was helped by his servant, Souken left the room after leaving his ultimatum, leaving the duo of master and servant alone.

"Thank you…Berserker…but return to your spiritual form please"

He had many places to visit and he couldn't waste magical energy to keep his Servant in his physical form if he wanted to go to all those places.

Some celebrated his Servant's high stats but the stronger he was the more mana he would have to give.

mana that I didn't have.

"The Servant Caster has been summoned."

"He is the last servant to appear, so it is time to start"

Kirei did not have many interests in life, he was someone who could not feel his feelings and became indifferent to life, now he was only helping the whims of his father and his Master.

"You know the plan. attacking the Tohsaka family with priority to the head of the family, the boundary fields have to be child's play for you」

"Hehehe, doesn't it matter that you have an alliance with Tokiomi?"

"You know what work is like, try to have fun."

Kotomine Kirei, master of the servant Assasin.

A man without a heart.

It wasn't long before he lost signs of communication with his Servant.

or at least with one of his many servant assassins.

Kiritsugu had a bad feeling.

The moment they had arrived at Fuyuki was when that feeling had appeared, it was as if a great weight had appeared on his chest.

It was worrying.

Tomorrow he would meet with Iri and Sable but his condition was not completely stable.

mentally speaking.

He managed to focus thanks to Maya's reminder, the Walther still had the same weight that made him reflect.

The situation with the assassin and his supposed death was very suspicious, the servant archer was unexpectedly powerful, the multiple murders throughout fuyuki and the magic circles at the crime scene...

There were many things to think about, his beautiful daughter had to wait.

"Focus"

First things first, reconnaissance, Could family members around the church watch out for any possible traps.

information, they had to find out possible heroes who have the characteristics of the servant archer and find weaknesses.

quest, the wandering magus who attempted to summon with the blood of civilians had to be eradicated to avoid any future inconvenience.

and finally.

prepare to receive Iri.

"...How complicated." Shirou could feel a headache coming on.

Caster had taken it upon herself to explain to him as best she could everything about Magecraft, the moonlit world, and the holy grail war.

the war was unexpectedly chosen as a participant.

"I'm the one who has to say that." Caster was already suffering from a headache.

Shirou had explained everything about his situation and also about his status as a "martial artist", Caster for a moment thought that his master had suffered trauma from the death of his family to perform the summoning ritual.

It's a shame it wasn't like that.

"You are not a child…" her master was an adult man inside a child's body.

"And you do not exist..." his servant was the combination of a person with a divine spirit, she had two different stories but not his own story, demonstrating his nonexistence.

"You are from another world…" a world of martial arts and people with the ability to break any range of power in this world.

"And you are still alive…" She lived imprisoned in the kingdom of shadows for all eternity but was alive after all.

Caster had no way of confirming what the redhead was saying and the same was true for Shirou, so the Servant had the brilliant idea of using a spell to exploit the ability to see the history of the Servant and the Master in dreams.

They were suffering the consequences.

They obviously hadn't seen each other's entire lives, only small fragments, but they had confirmed each other's words. Caster thought about all the possibilities of those skills and Shirou thought that magecraft was problematic.

"So…can I use those runes you use?"

"Your elemental affinity and origin prevent you from doing so...and I can't use those juicy martial arts."

"So you can't use my abilities and I can't use yours?" It was possibly the most wasted situation of his entire life.

"Of course not and I will make sure to turn you into an excellent magus…I will make sure of it" Scathach and Skadi will not waste so much potential just because he couldn't use runes "but we can't start your training now, I have to secure the area, put up protection minimum, prepare some equipment for you and many other things"

"Oh, can you add any accessories that will add weight to me?"

"It's not complicated, but why end with just that?" Caster's face had a playful smile. He knew it was necessary to increase the speed of his master's training.

Shirou began to meditate with the Great Dharma technique of the sword when Caster disappeared, he discovered that the energy inside him, mana or od remembered, also began to circulate in rhythm with the technique.

He had to find out all the possible changes that his martial arts undergo with the appearance of the magic system of this world.

advantages and disadvantages.

He had to find out everything so as not to risk it, it was an unknown path from here.

The duo of Master and Servant had a lot to do.