Shirou, who returned from the Fairy Kingdom

The Sea Demon was intentionally released by me.

……

……

……

Shirou can now understand the state of mind of the Demon Diarmuid, who seemed to be in a high.

While people often say "it's easy to go from frugality to extravagance, but difficult to go from extravagance to frugality," the opposite is true when it comes to describing "power."

When you lose your power, you don't feel any inconvenience, but the feeling of fullness and omnipotence when you regain your power is irresistible.

"Ms. Avalon".

Shirou whispered his name to the Flower Magician, who had materialized and was hiding beside him.

"Yes, yes~"

A melodious female voice rang out.

Shirou: "Give me a wind magic spell."

Ms. Avalon: "What?"

Shirou stared intently at the hideous otherworldly sea monster.

He now possesses an even more powerful Eagle Eye, capable of piercing through the dense, magical fog to see every fold of the monster's skin, the countless eyeballs hidden within, and the nauseating slime clinging to them.

Shirou repeated, "You know how, right? Wind magic. I need the protection of the wind so I can fly up to the top of the monster's head."

Lady Avalon was puzzled by the Master's request.

Because Shirou in the "Royal Command Spell" state can definitely fly, but she immediately thought of Saber's "Wind King Barrier".

I see... Hehe.

Ms. Avalon smiled slightly.

"Understood, I'll take care of the support role."

As she said this, she dematerialized.

Lady Avalon shook her wand, which was held high, and then a stream of air mixed with colorful flowers enveloped Shirou's body.

"What is this?" Shirou asked.

Lady Avalon said proudly, "The blessing of riding the wind, you must have heard of the legend of King Arthur, right?"

Blessed by the Lady of the Lake, the Knight King can walk and run on the water as if it were flat ground.

This is the same as the wind-attribute version of that one; it's a magic I developed to fight Vivian.

Shirou tried it out following Ms. Avalon's instructions.

Sure enough, just like flying, he stood in mid-air.

Okay, no problem.

This wasn't his first time flying, and Shirou quickly got used to the feeling of flying.

After circling twice in the air, he returned to his original spot and extended his hand to Ms. Avalon, who was still standing there smiling.

"Come."

"what……?"

Ms. Avalon's pupils dilated slightly.

"Let's go," Shirou urged her, taking his hand.

But after a moment's hesitation, Ms. Avalon lowered her head.

"I'm sorry, Master... I can't go with you."

"Yeah."

"Well, because it was agreed upon... and you see, won't others discover my whereabouts?"

Archer and Rider both possess the ability to fly.

You'd be very troubled if they found out I was there, wouldn't you?

Shirou nodded: "That's true. I'll be going then. Time is running out, about 165 seconds left."

Lady Avalon looked up at the boy standing in the air: "Then, Master, I wish you good luck in your battles."

I will stay here and watch over you. These precious three minutes, compressed from decades of my lifespan, must not be wasted—

"You must let me see the most wonderful performance, my little master!"

"Humph."

Shirou smirked: "What an absolutely wicked woman."

Ms. Avalon responded with a bright and charming smile: "Didn't you know this from the beginning?"

If I had to say something, is it wrong for a Master to believe in and rely on a bad woman like me?

"Haha, that's really true."

Shirou turned around and, like an arrow released from a bow, charged towards the otherworldly sea monster.

……

……

A deafening roar ripped through the sky; it was the sonic boom produced when an object broke the sound barrier.

At this moment, a pair of lights streaked across the night sky from south to north against the backdrop of the night sky; those were the identification lights of fighter jets.

"...What...is that thing?"

The monstrous figure writhing in the thick fog left the two F-15 fighter pilots speechless and dumbfounded.

Although they did receive orders that "a monster has appeared in the suburbs of Fuyuki City," the ground control repeatedly emphasized that they were not joking.

However, when the two pilots actually saw the otherworldly sea monster, they were so stunned that they didn't know how to express their feelings.

One of the pilots hesitated, unsure whether to keep his distance and observe the situation.

However, just as he was about to contact the ground control tower—

A soldier's sixth sense made the man feel as if he had sensed something.

Something appeared directly behind me.

He immediately turned around and saw something even more unbelievable than a monster—

A figure stood proudly on the back of the fighter jet he was piloting.

"……what?"

The fighter pilot was so surprised he was speechless.

The wingman who was following closely behind had disappeared, and there was even a figure standing on the fuselage of his own plane.

Am I having a nightmare?

The figure was completely unprotected, exposed to the subsonic convective air.

He looked very young, perhaps not even twenty, yet he exuded an indescribable and powerful presence.

The boy stared intently at the monster in front of him, completely oblivious to the fighter jet beneath his feet, as if he were standing not on an F-15 fighter jet, but on a moving iron plate.

Finally, the boy standing on the fighter jet noticed the pilot's gaze.

Even while seated in the airtight cockpit, isolated from the outside world, even as the aircraft engines emit terrifying noises capable of deafening—

The boy's voice appeared directly in the pilot's mind.

"Full speed ahead."

"Eh? But..."

"Didn't you hear me tell you to go full speed ahead towards the monster?"

“Ugh…!!”

Unable to resist.

The fighter pilots understood this fact deeply: failure to comply would result in their deaths.

He gritted his teeth, gripped the control stick, and with a determined heart, began to fly towards the mountain-sized monster.

In the next instant, tentacles several meters in diameter shot out from the surface of the giant mountain of flesh, lashing directly at the fighter jet at a speed that would be impossible for aerial maneuvers to avoid.

"Ah ah ah ah ah ah ah!"

The pilot screamed and closed his eyes in despair.

Ah, that's enough...

Goodbye, Mom...

"Don't stop."

The boy's voice echoed in the pilot's mind once more.

At the same time, a crimson greatsword that spews flames shot out from behind the aircraft, severing the suction cup tentacles, which were over five meters in diameter, in two.

After severing the tentacles, the flaming greatsword did not stop there, but instead charged straight toward the monster's main body.

"boom------!!!"

The flaming greatsword with its unique design shot directly into the monster's body, constantly piercing and crushing flesh while igniting raging flames, eventually exploding inside the otherworldly sea monster.

The bursts of fire painted the pitch-black night with beautiful colors.

After the attack, the monster's massive body was ignited and turned into a burning mountain.

The F-15 pilot felt he would never forget the sight before him.

"■■■■■■■■■■■■——!!"

The otherworldly sea demon roared terrifyingly as its body twisted and writhed as if shedding its skin, barely managing to extinguish the flames by repeatedly devouring its own flesh and blood.

After the fiery crimson greatsword pierced through the other end of the monster's body, it spun back at high speed and was held aloft in the hand of the boy standing on the back of the fighter jet—Shirou Amamiya.

"I'm sorry, Homura, I just got back and you're already dealing with this disgusting enemy."

But if Hikari did that, he'd be absolutely furious.

Shirou whispered softly, his expression filled with nostalgic affection.

"I'll give you a proper bath when we get back."

The name of this sword is "Aegis".

Unlike the "Excalibur" given to him by the witch, they have been with Shirou from the beginning and are the strongest weapons in Shirou's sword domain.

The so-called Noble Phantasm is something that is possessed by a Heroic Spirit and ultimately becomes part of their own concept.

For Shirou, the "Holy Grail of Heaven" is a sword that is almost equivalent to half of his name, "Fairy Knight Arthur".

However, they are in very poor condition now and cannot even exert one ten-thousandth of their original power.

Even though it cannot unleash its original power, with the enhancement of resonance, "Flame" still reaches an astonishing level of firepower comparable to an anti-military Noble Phantasm.

"The remaining time for the 'Royal Command Spell'... sixty seconds left? Hmm, it's about time to begin."

After the warm-up, it's time to prepare the octopus.

Shirou transformed the crimson greatsword into golden magical particles, and then his two signature scythes appeared in his hands.

To defeat this giant sea monster, we still need to use the "Blade of Chaos," which was Shirou's plan from the beginning.

"The height is suitable."

The boy, wielding two blades, glanced at the otherworldly sea demon that was now almost upon him and spoke.

"You can go back now. Go find your wingman and don't get in the way."

"what?"

The fighter pilot was still standing there in a daze when he looked up and saw the boy leaping over the cockpit.

The wind-protection surrounding Shirou propelled him like an arrow released from a bow, sending him hurtling towards the monster's massive body.