Opening the Second Dimension with the FGO Method

"Hey! Pervert! What do you think you're doing?!" A hint of violence flickered in Ritsuka's eyes.

Actually, it's a dangerous element too, but compared to the Servants, Ritsuka is just too weak.

"Anyway, let's ask what's going on first. He seems like a relatively normal Servant."

Suddenly, a projection appeared, showing a very meek-looking figure.

"Yo, a talkative one, huh? How'd you manage this? Some kind of magical communication?"

Cú Chulainn looked curious.

"Pleased to meet you, Caster's Servant. Though we don't know which Heroic Spirit you are, we still hold you in reverence."

"Ah, save the formalities. I'm sick of 'em. Spit it out if you've got something to say, softie. You're good at that, right?" Cú Chulainn waved dismissively.

As he said that, Cú Chulainn glanced around, then clicked his tongue.

That pair left... Though he expected them to.

After all, they just met; they're not likely to travel with him so easily.

"Um... is... is that so? Well, I'll ask then... 'Softie'... getting called that right off the bat..."

Dr. Roman looked utterly devastated as he said this.

Chapter 4 Remilia VS Shadow Berserker

"...So, that's the current situation at Chaldea. Ritsuka is currently conducting a field investigation as a Master."

Dr. Roman explained this, then began asking about the current situation.

"I'd like to confirm: are you the only surviving Servant participating in the Fuyuki City Holy Grail War?"

"If you're talking about winning or losing, I certainly didn't lose. But somehow, our Holy Grail War took a turn for the worse."

As he said this, a look of gravity appeared on Cú Chulainn's face.

"I don't know the details. The city was engulfed in flames overnight, and all the humans disappeared, leaving only the Servants. Saber was the first to reignite the Holy Grail War. That guy was like a fish in water, stirring up trouble everywhere. Then he personally took care of Archer, Lancer, Rider, Berserker, and Assassin, one after another."

"A survival battle between seven Servants... That's the rule of the Holy Grail War being held in this city."

Olga Marie explained to Ritsuka, who was still a novice, really.

"To emerge victorious from this fierce battle... No, to be precise, to survive this war."

Mash continued.

"Yeah. And the Servants defeated by Saber get tainted by black mud, like those two just now. Those guys, along with the worm-like monsters that keep popping up, seem to be looking for something. And the trouble is, I'm one of the things they're looking for. Because unless I'm eliminated, this Holy Grail War won't end."

As he said this, a hint of trouble appeared on Cú Chulainn's face.

"The only Servants left are Saber and you... So if you defeat Saber..." Dr. Roman said.

"Yeah, then the Holy Grail War should end. But whether that'll restore things to normal, I don't know."

Cú Chulainn shrugged. It wasn't his problem, and he didn't understand the incident.

"What? So even though you helped us, you're just doing it for yourself in the end. You want to defeat Saber. But you don't stand a chance alone, so you came to us... Am I wrong?" Olga Marie was displeased.

Though they could resolve this Singularity, his actions irked her a bit.

"That's right. But that's not a bad thing, is it?" Cú Chulainn readily admitted, then glanced around.

"Anyway, looks like we have visitors."

Suddenly, many shadows emerged from who knows where and began approaching them.

"Eek...!" Olga Marie hid behind them.

"They'll keep coming endlessly. So, the more allies, the better!"

As Cú Chulainn said this, he waved his right hand, and several runes turned into flames, blasting towards the shadows in front of him.

Mash looked wary and rushed forward. Dealing with Shadow Servants was difficult, but dealing with the small fries was still manageable.

This was the site of a scorched forest. Honestly, Koizumi didn't know where Remilia wanted to go. In Koizumi's opinion, they were just wandering around aimlessly. Was it really okay to wander around like this?

Koizumi felt like they couldn't go any further, or something bad would happen. There was a sense of danger ahead.

"Miss Remilia, are you sure you want to go forward?" Koizumi couldn't help but ask, a hint of worry in his eyes.

"Of course. But it seems you've already sensed the presence ahead. That's right, there's a very strong guy up ahead. I plan to meet them." Remilia seemed very confident as she slowly floated down from Koizumi.

"You don't need to get any closer. You can't approach the enemy ahead. At least, I won't have the spare energy to protect a servant during the upcoming battle. The enemy ahead... is very strong..."

A cold killing intent flickered in Remilia's scarlet eyes. If she wasn't mistaken, the enemy ahead possessed divinity. Their strength probably wasn't much weaker than hers. If they really fought, who would win was still unknown.

But Remilia never feared the enemy before her. No matter how strong they were, she would challenge them.

"Roar!"

A roar suddenly came, as if a beast was roaring because it sensed someone intruding into its territory. The next moment, the earth shook, and a huge figure rushed out. Even though it was wrapped in shadow-like blackness, Koizumi could still see its appearance. And that was why Koizumi couldn't help but be shocked.

It was a sturdy man with a height of at least two meters, messy black hair, and well-defined muscles. He wore an armored skirt, wielded a grotesque axe-sword, and exposed his upper body, with bare feet.

With the appearance of this sturdy man, a violent aura like that of a ferocious beast instantly permeated from him, covering the surroundings and causing Koizumi to instinctively feel a sense of suffocation.

This was Berserker. This was a true berserker.

"Fall back!" Remilia snapped, her face serious, before charging her petite frame towards the giant towering before her.

The giant swung a blow, but Remilia didn't dodge. In the blink of an eye, a spear enveloped in pink light materialized in her hands. The moment the axe-sword collided with the spear shaft, an unexpected scene unfolded. Though she looked strained, Remilia didn't budge, managing to block the attack.

The force of the impact erupted outwards, and Koizumi quickly retreated. Just watching was enough to feel Remilia's extraordinary power.

Although she was weaker in terms of raw strength, the vampire's night-time boost allowed Remilia to barely hold her own. But—

"He's really strong. The Berserker class lives up to its name. But... if he's a Berserker, he'll have lost his reason due to Mad Enhancement, so his reactions in battle won't necessarily be up to par!"

Thinking this, Remilia shook off the giant and began to use her agility to fight the enemy.

However, to Remilia's surprise, the giant's speed was not inferior to her own.

"You've got to be kidding me... how can such a massive body have such speed!"

Remilia's scarlet eyes narrowed sharply, and she could only grit her teeth and frantically attack the enemy before her.

Swing, swing, and swing again...

The giant only unleashed this one move when approaching an enemy, but it was more effective than any other technique.

Because the giant was the power type, but the key was that not only was its power extraordinary, but its speed was also not inferior.

However, it seemed that because it had turned into a shadow, its strength had decreased to a certain extent, which allowed Remilia to have the qualifications to fight it.

While dodging the opponent's attacks, Remilia also continuously brandished Gungnir to meet them.

The giant's beast-like attacks made Remilia feel a sense of difficulty.

This kind of pure attack was difficult to deal with, facing that huge axe-sword.

It stirred up a terrifying air blast, turning into a terrifying storm of energy, and landed heavily on Remilia's body.

Remilia gritted her teeth secretly, holding Gungnir horizontally in front of her, but the opponent's strength was indeed great, and Remilia was still knocked away by this blow.

"What terrifying power..." Remilia believed that as a vampire, coupled with the blessing of the night, her power was already strong enough, but facing the power of the giant in front of her, she still felt a sense of danger.

However, that's what makes it interesting, isn't it... Remilia's lips curled up slightly, her fighting spirit already aroused.

In Gensokyo, due to the constraints of the Spell Card rules, she couldn't have a good fight. Now that she had finally encountered an opponent, how could she not enjoy it? How long had it been since she had encountered an opponent of this level?

Thinking of this, Remilia's lips curled up in a dangerous smile, and she went towards the giant in front of her without hesitation.

She continuously brandished Gungnir in her hand. Although the opponent's strength and endurance were very high, it didn't mean that she couldn't cause damage to it. As long as she could cause damage, then she would have a chance to kill it.

"ROAR—"

The giant roared, and the giant axe in its hand swung towards Remilia in front of it without any rules.

The power mixed with the sound of the air being torn apart was enough to make people feel despair, but Remilia showed a cruel smile, then jumped up from the spot, flashed past the giant's giant axe at lightning speed, rushed to the high altitude behind the giant, and then struck straight down.

However, the giant reacted quickly, and the other fist went straight towards Remilia's chest.

Remilia ignored the giant's attack, endured his punch, and struck out like lightning, her sharp nails piercing towards the opponent's heart.

The vampire's vitality is exceptionally tenacious, and even if its body is shattered, it can recover quickly, but it takes time.

It must be admitted that the giant's punch made Remilia's chest full of blood, and even somewhat sunken, but Remilia's attack also hurt the opponent.

The giant retreated quickly, and even though Remilia didn't hit the opponent's heart, she still grabbed a large piece of flesh.

"Mistress!"

Koizumi's expression changed the moment he saw the blood on Remilia's chest.

However, the next moment, Koizumi felt a burst of heat in his right hand, his expression twisted, and he looked at his right hand.

There were three blood-red marks there. At the same time, memories about this mark flowed into his mind.

"...Command Seal..."

Can I help Mistress... what Mistress wants to do most now... A fiery look flashed in Koizumi's eyes.

Slowly, Koizumi pointed his arm holding the three Command Seals towards Remilia's direction.

"In the name of the Command Seal, I command... Remilia Scarlet... eliminate the enemy in front of you!"

A Command Seal disappeared, and a huge amount of magical power poured into Remilia's body. Remilia was slightly startled, glanced at Koizumi behind her, and just happened to meet Koizumi's gaze.

Soon, Remilia retracted her gaze, but the corners of her mouth raised slightly.

With a burst of speed, Remilia came to the giant's sky and struck straight down towards the giant.

The giant roared, and the giant axe in its hand swung towards Remilia.

Remilia was not afraid at all, just complaining about the dissatisfaction in her heart, she shouted loudly.

"How many times have I told you! Don't call me Remilia Scarlet! Call me Mistress!

"However, I'll spare you for your loyalty to me! Open your eyes and watch carefully! I'll show you how I'm going to kill this guy!"

"Vast Killing Array - Scarlet Nevernight!"

Chapter 5 Invitation of the Alliance

"Vast Killing Array - Scarlet Nevernight!"

Suddenly, a violent impact caused cracks to appear in the surrounding earth, and the chaotic cracks spread to the surroundings, and then, blood-like bright red light bloomed from her body.

The next moment, a massive, bloody cross rose from the ground, a red beam formed entirely of spiritual energy unleashing terrifying pressure. The giant was trapped within the huge cross, roaring incessantly. When the red light ceased, Remilia, bloodied, flew backward.

"Are you alright, Milady?"

Koizumi's expression changed drastically, and he rushed forward to help her up.

Though Remilia was spitting blood, the corners of her mouth quirked upward slightly, her eyes filled with triumph.

"I won!"

Koizumi paused, then quickly looked ahead.

The giant before them was soaked in blood, his body already beginning to dissolve into photons. Clearly, this Shadow Servant had lost.

Koizumi couldn't help but breathe a sigh of relief. At the same time, Remilia's wounds were slowly healing.

Just as Koizumi had predicted, Remilia's greatest strength as a vampire was her vitality, especially in the absence of sunlight. In a place where the entire world was enveloped in darkness, she would receive the strongest field advantage.

Seeing the soaring red light, Cú Chulainn, who was helping Mash use her Noble Phantasm, was also momentarily stunned.

Mash, still in disbelief after using her Noble Phantasm, caught sight of the red light.

"What... is that?" Mash asked, a hint of wariness in her voice.

"Looks like a Noble Phantasm release."

"Indeed, that must be a Noble Phantasm release. With that much magical energy, it can't be anything else."

Cú Chulainn nodded, roughly understanding who was releasing their Noble Phantasm. However, he was surprised that the direction it came from was, if he remembered correctly, Berserker's territory.

"That Master and Servant actually went to Berserker's territory? Could it be that she slaughtered Berserker!"

Thinking this, a hint of disbelief appeared on Cú Chulainn's face.

He had fought Berserker before and knew Berserker's true name. Even Saber had relied on the terrifying extent of her magical energy reserves to defeat Berserker.