My youth story, a crossover anime, turns out, is FGO!

what? What?

Hachiman Hikigaya took out his binoculars, held them up to his eyes, and zoomed in on the distant scene.

At the horizon where the sea meets the sky, something dark seems to be surging.

"Go and see."

Scáthach changed her posture, from a comfortable sitting position to kneeling on the eagle, ready to fight at any moment.

"Ah."

Astolfo gave a simple reply and directed the eagle to fly in that direction.

With a flap of its wings, the eagle quickly approached the location.

At this moment, Hachiman Hikigaya finally saw those things clearly.

"What are these?"

Hachiman Hikigaya exclaimed in disbelief, his voice suddenly rising: "This number is just too outrageous!"

“Indeed, the number… is astonishing.” Even Scáthach used the word “astonishing” to describe it, which gives you an idea of ​​how outrageous the number is.

As they drew closer, the three could see that in the distance, dark monsters huddled together, forming a unique wave, and these Rahm were densely packed, frantically advancing towards the land.

“Rider!” Scáthach decided immediately.

“Understood!” Astolfo’s expression also turned serious. He took the magic flute from his waist. “Summon the Flute of Panic (La Black Luna)!”

The magic flute suddenly grew enormous, and with a powerful blow, invisible sound waves spread out, causing endless panic. Some of the weaker Rahms were even shattered.

The advance of the endless black tide was slowed down for a moment.

“No, there are too many!” Astolfo shouted.

Scáthach then drew runes of fire in the void, and a raging fire ignited on the sea, but compared to the massive black tide, it was just a drop in the ocean.

Of course, they were high in the sky, and even if Haili Lahem could make a certain height jump, he would not be able to attack them.

However, the approaching Barrahim horde from afar caused the situation to take a sharp turn for the worse.

They can fly! And their strength far exceeds that of ordinary Lahm.

"Retreat first," Scáthach's voice was as cold as ice. "We can't afford to waste time with them."

“Leave it to me!” Astolfo nodded.

Scáthach sneered, "Let's give them a final surprise."

"Let me take you to the Land of Shadows—"

Scáthach threw the red spear into the air, then suddenly leaped up and kicked it away with a backward kick.

"Gae Bolg Alternative!"

"Let me witness your true power! A phantom horse unlike any other in this world!!" (Hippogriff)

The red spear split in mid-air, forming a rain of arrows that scattered the Rahm group.

Before they could retaliate, the eagles, soaring through the air, tore open another gap in the Lahem flock, disappearing without a trace with a dimensional leap.

Even without Hachiman Hikigaya and the others reminding them, satellites in space had already observed this terrifying scene. On the aerial view of the four oceans, the black patch that had only occupied a part of the area had separated into countless black dots and was beginning to expand wildly. This was not the Chaos Tide erupting, but Rahmu.

In the first wave alone, billions of Rahms are surging toward the continent and human cities.

After nearly a month of relocation, even though the original inhabitants of Antarctica had all been moved away and all humans were concentrated in major cities, there were bound to be some who slipped through the net. But it must be said that the human alliance had indeed put in a lot of effort in this matter.

Almost all coastal cities were relocated, using the original high-rise buildings as a barrier to create a simple defensive line. Such a magnificent project was enough to shock the world. However, this would be the last line of defense. The first line of defense would be the fortifications built on small islands far from the mainland.

Everyone was aware that, unless it was the last moment, Rahm must not be allowed to enter the land; otherwise, even the escape of just one of them would be a terrible risk.

Currently, aside from production-type heroes, magicians (whose value in the rear is greater than on the battlefield), and heroes who serve as leaders and need to sit in the center to stabilize morale, almost all heroes have reached the first line of defense.

The number was not large, because the battlefield was divided into four parts, but the Pacific battlefield faced the greatest pressure. In addition, there were quite a few Masters from Japan, and many Servants rushed to the Pacific defense line.

The smoke of war filled the air, and many of the fallen heroes looked on with excitement and nostalgia. Indeed, it was in such an environment that they achieved their heroic status. Even though they longed for peace, it was this atmosphere that made them feel most at home.

However, the atmosphere between them was not friendly at all. Rather, it was more like a clear division between them. Those who belonged to the same country or knew each other could barely stand together, but the others simply couldn't stand each other.

After all, they are all heroes, and there are no kings or gods here who can convince people, so naturally no one looks up to anyone else.

Not to mention, many of them had past conflicts, such as Hector and Achilles, Sakata Kintoki and Shuten-dōji, etc. It's a wonder they didn't fight each other.

"Everyone!"

As the ruler, Jeanne had to step in to smooth things over. The blonde saint stood at the front of the stage, her demeanor dignified: "You are all heroes who have answered the call of the world and appeared to protect humanity. We stand here to protect our Masters and the people behind us. Whether we were allies or enemies in life, we will unite here to fight the enemy together."

"My true name is Joan of Arc. As a heroic spirit who guards the Holy Grail and protects the people, I will support you all!"

Joan of Arc here still has the privilege of "divine judgment," and as a renowned saint with the class of Ruler, the other Servants at least give her some face.

“Then, I will be in charge here for the time being. Does anyone have any objections?” Joan of Arc looked around.

"No, Miss Joan of Arc's actions just now were very cool!" Charlemagne was the first to jump out in support. Although he was also a famous king, he considered himself a knight and had no intention of acting as a commander.

Incidentally, although according to nationality he should have gone to the Atlantic battlefield, he claimed that he already had a reliable successor (Napoleon), and that he would rather protect his Master.

Most of the Servants present fell into one of two categories: either following their homeland or following their Master, depending on the communication between them and the specific circumstances.

With the first person responding, the other heroic spirits followed suit, after all, there were quite a few pure warriors among them.

Joan of Arc nodded: "As for the lieutenant, I recommend Hector. Does anyone have any objections?"

“Me, old man?” Hector pointed to himself. “I am indeed good at defensive warfare.”

Hector's performance in Troy was also world-renowned, and apart from Achilles clicking his tongue, no one else had any objections.

"Well then, let me ask first, when will the Great Wall arrive? Also, those of you with defensive or architectural Noble Phantasms, please use them now." Hector quickly began to give instructions. "After all, what follows is going to be a tough battle."

"This island now belongs to His Majesty. The Great Wall will soon be visible. Please wait a moment," Prince Lanling replied gently.

Qin Shi Huang, summoned by the Kingdom of Hua, descended as a Rider. His Noble Phantasm, "The Great Wall," could cover all the territories under his name, making all the countries that wanted to get an EX-rank defensive Noble Phantasm for free extremely tempted. Unbeknownst to them, the territory of the Qin Empire had increased several times over.

After all, heroic spirits have to leave eventually, so it's not shameful to try and get something for free.

Even if they don't want their territory to be divided under someone else's name, if it's just a few small islands along the defensive line or a small area along the coast, everyone would still be willing to take advantage of it. That's an EX-level Great Wall, complete with some Terracotta Warriors to fight alongside it.

"Understood!" Asai Chacha, one of the three famous Asai sisters and niece of Oda Nobunaga, raised her hand excitedly, pulling along the reluctant Gyobe-hime beside her.

"Even the sun cannot escape my grasp, Chacha! Go forth, immortal warriors of purgatory! The magnificent demon realm, Sun Wheel Castle (Kenran Makai Nichirinjyou)!!"

The Sun Wheel City, once engulfed in flames, has reappeared, with the raging Osaka Castle materializing on the island, exuding a magnificent and awe-inspiring aura.

"Osaka Castle burned to the ground? Isn't that very unlucky?" Ibaraki-dōji thought it was absurd.

"Why would the princess do such a thing? Isn't Himeji Castle meant for staying at home?" Gyobe-hime protested, "I want to go home—"

"Alright, alright!" Chacha said with a grin, pulling her aside, while Tamamo Cat grabbed Osakabehime's other hand. "You have to show everyone the princess's charm!"

"Don't even think about running away, or I'll definitely tell on you to Master Red Enma, meow!" Tamamo Cat threatened.

Princess Gyobe had no choice but to put on a bitter face, adopt the airs of a princess, and unleash her Noble Phantasm: "White Heron Castle, the serene barrier protecting the four directions. This is the hidden ruler, Takatsu Bird, I am Hachiten. Princess Gyobe of the Night Parade of One Hundred Demons, eternally glorious for a thousand years upon a thousand! Come, Lord Hachiten of the White Heron Castle (Hakurojyou no Hyakkihachitendousama)—"

After the magnificent Himeji Castle appeared, Princess Gyobe immediately took advantage of the Noble Phantasm to lock herself in the innermost room: "The princess will not come out until the battle is over!!" Her voice was shrill.

The remaining heroic spirits looked at each other in bewilderment. Just then, an ancient city wall appeared out of thin air, its bricks and stones covered with mottled marks. The beacon fires soared into the sky. On the city wall, terracotta warriors holding long weapons stood there, their eyes filled with fighting spirit.

This is the Great Wall, a world-famous defensive structure.

Then Hector coughed lightly: "Let's start assigning tasks now."

He gazed at the dark clouds in the distance: "After all, the enemy is coming soon."