* I do not own anything. All characters and creations are the property of the Type-Moon company. *

* M for adult themes *

An Eternal King for the Throne of Heroes

By Try Another Time

The steps of Jubstacheit's creation shook the Great Hall.

The creature quickly progressed to ram Eero with his goat's head. Meanwhile, Eero waited for it to get closer. The beast kept running towards him but upon reaching the range of Bahamut it had already made its first mistake.

Eero moved to face the creature and slipped through the middle of its appendages while cutting them with great ease. It was like he had a hot knife and his enemy's skin was butter.

The creature having lost its hands and legs fell to the floor as it glided through the floor before colliding with one of the walls.

The cut limbs dissolved into a kind of white liquid that try to rejoin the main body.

Eero saw this and wasted no time before charging his sword with flames and sending a wave of them to eliminate the liquid.

The creature reconstructed its limbs and looked in Eero's direction as it rose from the ground. It was furious and chose to attack Eero with its snake tail. The tail spread to attack Eero with her mouth open.

Eero kept his position and once the huge mouth tried to swallow him, he began to cut everything in his path with great speed. Thousands of pieces of flesh in flames fell to the floor while from the rest of the tail new heads sprouted to follow the attack from multiple directions.

Eero dodged them and cut them easily as he jumped from one head to the other. The fight started to increase its height while the snakes tried to catch or devour him while Eero just evades them and cut each one just to allow even more heads to appear.

"I must admit it. This bastard knows how to recover but no more games." He thought before charging his sword with even more flames before stabbing his sword into the head of one of the many snakes and making his flames expand all around him like a sort of black and white fire sphere.

The flames began to expand along the tail before reaching the main body and making it scream in agony. The beast made a drastic decision and cut its connection to the tail by plucking it itself with two of its big arms. There was only left a severely burned area where its tail once stood.

Eero descended with the rest of the tail before it crashes into the floor. Bahamut was still involved in flames, but not as strong as before. He saw as the creature looked at him full of fury. Eero started to walk towards the beast defiantly.

The creature did the same while hardening its fists with more skin which took a hard and shiny consistency. Once it had Eero within range it began its attack. The creature started throwing punches at Eero at a high speed. "Die!" Screamed the face on the creature's chest.

Eero faced the punches with Bahamut while blocking each of one of the blows and causing severe cuts along the arms of the creature. "You call this speed?" Said Eero before showing how fast he could attack.

If the fists were quick, Eero's movements put the creature to the limit. The creature felt the new wounds that appeared around every part of its body while Eero did not receive one of its blows.

The creature began to feel scared so while it kept punching, it began to charge an attack on its goat head mouth.

Eero noticed the sparkle around that mouth. He increased the flames in Bahamut and cut the arms around the parts that connected them to the body. Eero jumped towards the creature and shortly after he felt behind the beast and a second later the goat's head slipped backward before opening its mouth and a pillar of flames was shot toward the ceiling of the Great Hall. The flames were so strong that they pierced the ceiling.

The body of the beast burned from its neck and where its arms once stood while the head on its chest was screaming full of pain.

Eero turn around and approached the beast before cutting it in half horizontally. Both pieces fell on opposite sides showing the inside of the creature especially its nucleus. A red crystal which lay cut in two.

But something else captured Eero's attention on the right side of the beast's body.

"You are a difficult parasite to eliminate or I'm mistaken, Jubstacheit?" Eero asked as he approached the piece of meat and prevented his flames from calcining it.

"Cursed you..." Said Jubstacheit with difficulty. Only a half-torso and traces of his face remained.

With Kiritsugu.

Kiritsugu advanced cautiously, but quickly. Every door found was opened cautiously while looking for Illya. He wasn't sure where she could be because the damn old Einzbern could have moved her to another place in the house, but he had a hunch that she was somewhere on this side of the castle.

Kiritsugu continued to advance for several minutes until he heard the footsteps of someone approaching from the hallway to his left. As he steps seemed to be as quiet as possible so Kiritsugu stood against the wall that led to that hallway and waited for whoever it was while having his gun ready to attack.

"If I have to torture them for information about Illya, I will." Thought Kiritsugu.

With Leysritt

Leysritt was advancing while looking around for any possible threat that might hurt Illya. Since they came down to the first floor she had been able to feel strong amounts of mana being used so her instincts told her that things could get worse quickly.

Now they were in a hallway leading to the direct path to the Great Hall. But Leysritt could feel the presence of mana around the corner.

"Illya stay behind me and move slowly." Said Leysritt in a very low voice.

Illya nodded and both walked close to the left wall.

Leysritt was ready to attack if the situation warranted her so that once they were near that corner she inhaled deeply before grabbing her halberd and going out to attack. Once out of the aisle Leysritt turns quickly and try to nail her halberd into the man's body.

The man dodged her attack quickly as he back away he shoots several times. Leysritt blocked many of the bullets with her halberd, but one of them hit her in her left leg.

"Leysritt!" Illya screams as she sees her protector bleeding.

The man stopped his attack after hearing that voice. "Illya?" Asked Kiritsugu.

Leysritt saw how the man referred to Illya but she didn't lower her weapon. She wasn't sure that this was the man they were looking for.

Illya listened to her father's voice and carefully approached the corner before peeking her head a little to see if it was really him. Her eyes shone with joy to see that it was him and with some tears of happiness, she ran to hug him.

"Dad!"

"Illya!" Answered Kiritsugu as he knelt to hug his daughter. When he had her in his arms the tears did not stop. His little Illya was in his arms again.

Leysritt saw the scene without knowing how to react. She could see how Illya was cheerful, but she didn't know how she should feel about it. She advances to the duo with her halberd down, but Kiritsugu pointed his gun again.

"Who Are you?" Asked Kiritsugu while he was covering Illya with his other arm.

"Dad, don't do it. Leysritt is my protector. Grandpa sent her to protect me, but she helped me get to you." Illya said as she frees herself from Kiritsugu and stood in front of the gun.

Leysritt saw this and could feel that warm feeling on her chest again. She didn't know what this was, but she felt the desire to follow the little girl wherever she went. "My name is Leysritt, a homunculus of the Einzbern. I was entrusted with the protection of Illya."

Kiritsugu stared at her and noticed the resemblance to Irisviel, even though her hair had a different style. His daughter showing appreciation for the homunculus was something he couldn't change, but he had to make sure of something before he decided what to do with her. "The Einzbern family ends today. I'm one of the causes of this. I ask you this homunculus, what will you do now that it is all over for those who created you? "

Leysritt kept quiet for a few moments. She did not know whether to feel anger or sadness at what she had heard because she only knew they were her creators and owners. But this little girl was making her feel things she didn't know how to define. There was nothing else in her existence but to follow Illya. "I will follow the last orders that were given to me. Protect Illya, even if there are no Einzbern. "

Kiritsugu was astonished because he did not expect that she would make such a decision. "I understand, you can follow us and protect her." He said Kiritsugu before he ripped a piece of the coat. "Do you know any first aid technique?"

"I don't know what you mean." Said Leysritt. Kiritsugu approached her and tied the piece of leather around her wound.

Illya looked happy to know that her father accepted Leysritt to follow them, but she still had some questions. "Dad, did you come alone, or did you get help from someone else? What happened to Grandpa? "

Kiritsugu looks at his daughter tenderly. "I had help from your foster brother and his friends. But about your grandfather is something you must see to understand." He said as he stretched out his right hand for her to take.

Illya did not hesitate to do so and both were followed by Leysritt towards the Great Hall.

With the Artorias

The trio of Artorias had reached the Great Hall. Around the place, they could see the effects of the battle that took place, but above all, they could see how Eero spoke with something or someone.

"Eero!" Cry Artoria before running towards him. "Are you okay? What the hell happened here? " She asked as she made sure he was okay.

"Woah you did all this?" Leone said as she walked with Alice.

"Who was the victim?" Wonder Alice as she saw the charred parts of the creature.

Eero looked at them and just pointed to what was left of Jubstacheit. "He tried to use one of his creations against us, but he lost more than what he earned. Now, old man tell us what else is left in the castle." Said Eero as he pointed his sword at the Einzbern.

"Kid I would never tell you what's in this castle, even if I was tortured. You're wasting your time." Replied Jubstacheit. Even though it was just traces of what he was, the old man was still a bastard.

"That's the old man who had Kiritsugu's daughter?" Asked Alice after seeing the state of Jubstacheit.

"Even if I want to deny it, he is the one who looked for Kiritsugu for the fourth war and who created Kiritsugu's wife. He is Jubstacheit Einzbern." Said Artoria. She herself could not believe the state in which he was.

"This is a joke, right?" Said Leone. Eero and Artoria shook their heads. "You're trying to tell me that this is the pathetic wretch created all those homunculi! I thought he'd put on a tougher fight."

"Leone's appearances are deceiving. If Kiritsugu had faced what I defeated, he would have left badly wounded or dead. I think only a noble phantasm like Artoria's or Alice's could have eliminated it or if you knew where to attack. " Explained Eero.

"But Eero why do you want to know what else is in the castle?" Asked Alice. She was curious about why Eero hadn't eliminated him yet.

"We will need everything that can help us get stronger. Illya must learn magic, Miyu and Sakura alike. Dad will die in a few years and he won't be able to continue training them. The money will be needed at least for as long as we find ourselves in this timeline. Besides, is never better to use what the enemy leaves behind." Said Eero.

Alice couldn't deny those reasons. Artoria was surprised that Eero was thinking about the future in this way. Leone was fascinated by his way of thinking.

"Timeline? Do you come from somewhere else?" Asked Jubstacheit.

"That does not concern you, old man. I won't keep wasting my time with you." Said Eero as he wrapped Bahamut in flames.

"Wait, boy. I'll make you a deal in exchange for everything-" Jubstacheit said before he was cremated by Eero.

"No deal. Much less with you who use Illya as another piece to get something like that magic you wanted so much. " Said Eero before he let Bahamut go back with the rest of his weapons.

Artoria understood his reasons. As a king, he couldn't negotiate with the enemy much less if that would imply more problems in the future. "Eero What are we going to do now?" Asked Artoria.

"We have to check the castle especially the old man's office and the basement. Any book or foreign object we must examine before deciding whether we can eliminate it or take it. We'll take everything back in my reality marble." Said Eero before looking at the door on the left. "For now, let's wait for dad and Illya before going to investigate."

The three girls nodded as they waited with Eero for the return of Kiritsugu.