Before starting I will answer some questions you asked

1. How old is he supposed to be and what age did he reach after the mud?

The age he was before and after falling into the mud was 19 years old, going back to 9 years old and taking 10 years to get back to the point where he was with improvements, so he is 19 years old again.

2. What was it like before the mud and what will it be like after?

robust and athletic appearance, with a height of approximately 1.80 meters. His body is well proportioned, with defined muscles that denote strength and agility. He has a muscular but not excessively bulky build, which allows him to move quickly and dexterously.

His face is angular and marked, with strong and masculine features. He has a pronounced square jaw, which gives him a determined and confident appearance.

With that you can read the chapter, any questions, doubts or clarifications you may have, you can leave them and I will answer them in the next chapter.

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Saber still didn't understand how he was still alive. Looking at his master, he became concerned because of the wounds he had. As if it were very easy to read what Archer was thinking, he positioned himself by his side, and with a glance, they both understood what they had to do: end the person they had in front of them.

Meanwhile, Naruto just watched them with an amused look. After so many years of training, he could finally face a Servant, and it was none other than the Queen of Great Britain, Artoria Pendragon. Although now that he looked at her closely, she definitely had a sublime touch that made her beautiful. Diverting his gaze to the Archer, a feeling of dislike invaded him. He didn't know why, but this guy gave him the same feeling of disgust as the Emiya they were trying to defend. Without saying a word, using the infinite storage space of the curse surrounding his body, he drew one of his favorite weapons.

Seeing the enemy preparing to attack, Archer didn't hesitate for a second to draw his twin swords and launch himself into the attack. It was a mistake that would cost him dearly because as Archer approached the enemy and thrust his swords, the enemy dodged and struck him in the stomach, sending him flying straight into a tree, which split in half due to the impact.

"Hmm, what a disappointment. I expected you to be a little less disappointing," Fushiguro mentioned as he walked directly towards a stunned Rin, who was trembling with fear.

Saber was in a dilemma: save her allies or leave the battle and let them handle it. Seeing her terrified master, fearing for her friend's life, Saber hesitated no more and launched into the attack.

A powerful clash of swords raised a lot of dust on the battlefield. Saber, not expecting a counterattack from Fushiguro, began her siege, thrusting her sword at lightning speed. Without giving Fushiguro time to react, Saber launched a kick that was not blocked by Fushiguro, sending him flying through the air.

With a crazed smile, Naruto composed himself in the air and landed not far from his prey. With a slight laugh, he dodged an arrow fired by Archer, who had blood running down his forehead from the previous blow dealt by Fushiguro.

"Oh, it seems the bunnies are always together in the burrow," Fushiguro mentioned as he brushed off some dust.

"Why are you attacking us?" Saber said with an indifferent face, casting occasional glances at Archer, who was gradually recovering.

"Hmm, there's no specific reason. I just want to see the horror on your faces as you're hunted by me," Fushiguro said indifferently as he sheathed his katana and drew another of his favorite weapons.

"How... how can a human have that kind of strength?" Archer said as he summoned his twin swords again and took a combat stance.

"I don't have to answer to someone who will die soon... I wonder what face those two little ones over there will make," Naruto began to swing his weapon around him and with a smile resumed the fight.

Saber was the first to try to defend herself from the chains coming at her. She tried to cut them with Excalibur, but as she tried, the chains changed course and kept her confined in one place. When she finally managed to cut some of the chains, she had to block a powerful kick aimed at her abdomen, which sent her flying backward.

With Saber stunned, Fushiguro was determined to finish her off. But before he could get closer to her, he dodged Archer's twin swords that were thrown at his position. With a look of annoyance, he threw the part of his chain connected to his inverted spear and managed to pierce Archer's shoulder, pulling the chain to bring Archer closer and delivering a strong blow to his abdomen, not only dislodging the part of his spear that was stuck in Archer's shoulder, tearing part of the muscle, but also leaving a mark on Archer's abdomen.

Archer didn't know what was happening. He knew he wasn't the most powerful in this war, but for a human to match him in power? That was indescribable to him. If things continued like this, he would have to use his Noble Phantasm, but if he did, it was very likely that Rin would be involved. Before he could think of anything else, he had to dodge the spear attached to the chains again. Without hesitating, he decided to fight seriously.

Naruto was having fun. It was like when he hunted Magi with the bastard who betrayed him. Seeing them make their greatest effort and yet achieve nothing filled him with... pleasure? He didn't know, but he enjoyed seeing his prey give their all to survive. It was truly amusing, and he couldn't help but smile.

Before Naruto could do anything else, he was brought out of his thoughts when Saber's sword almost severed his arm. Seeing that one of the strongest Servants was finally serious, he also prepared himself. With a leap backward, he drew another of his weapons, which was a staff divided into three sections. The weapon seemed harmless, or so Saber thought until Naruto approached with his great speed and delivered a blow to her right shoulder.

The blow sent her rolling a few meters, and it seemed to have dislocated her shoulder. Artoria didn't know why Naruto had such a drastic change in strength since the last time they met, or why he still looked young like ten years ago. What was the identity of this individual? Was he really the Naruto she knew from the previous Holy Grail War? Without wanting to prolong this battle, she got up and adjusted her shoulder with a slight snap of discomfort. She wouldn't underestimate her opponent anymore. This time, she would show him why she is the Queen of Britain.

With a burst of speed, Saber began to corner Naruto. The clash of their weapons produced a grotesque sound, but neither of them wanted to give up more ground. Slowly but surely, Naruto began to equalize the ground, and Saber felt more tired. Looking behind her, she noticed Shirou bleeding. That scared her. When did that happen? Was it Toshaka? Looking ahead, she saw Naruto smiling and looking at her with an amused gaze.

"It seems you're just realizing it now," Naruto said with a smile as he continued to counter Saber's thrusts.

"You bastard... what did you do... when did you do it?" Saber said angrily and worriedly for her master, because if he died, she would too.

"It wasn't much, just enough to stun you and Archer so I could stab Emiya. If you're going to blame anyone, blame your Master's incompetence for being so weak," Naruto said before kicking Saber in the abdomen, causing her to drop her weapon and bend slightly in pain. But before she could recover, another kick, this time aimed at her face, sent her flying straight to where her master was, ending the battle between Naruto and Saber.

Walking calmly and passing by the Archer, who still hadn't recovered and was still in poor condition, he laughed a little and then looked at him.

"I know why I disliked you. You're just like Emiya's spawn, but you don't belong here... quite interesting," Fushiguro mentioned as he took out a knife from his inventory and stabbed him near the heart.

Rin didn't know what to think or how to act in the face of what was happening before her. Her Servant was agonizing with a knife buried in his chest, Saber was unconscious, and Shirou had a wound in his abdomen. She wondered what would happen now. Would he kill her, torture her? She didn't want to think about that, but when she looked up, she saw who might be her killer.

"Hmm, be grateful. I only let you live by a mere whim of fate. You can thank Saber for that," passing by Toshaka, Naruto began to yawn and set off on a journey to the Einzbern mansion, as it was time to meet his ex-master's wife. Oh, and it would be a splendid reunion if that brat Haya was also there when he arrived.

And that's the end of the chapter.