Not far from the river, at the Fuyuki Bridge. In the center of the 200-meter-wide river, Caster, who summoned countless monsters to devour himself, turned into an aquatic beast like a meat island.

In order to throw the demon-destroying Red Rose to destroy Caster's magic when his treasure is stripped off, Lancer, who has temporarily joined forces with Saber and Rider, is on standby on the riverbank, and Saber, who was once blessed by the goddess of the lake and was able to walk on the water, and Rider, who is speeding through the sky in a Kamui chariot, take the lead in the attack.

As she approached, the sea devil's size grew larger, as if it were about to overwhelm Saber, and her ugly and hideous form shocked her.

Countless tentacles stretched out like snakes, meeting the approaching Knight King.

However, its weirdness and ugliness could not stop her from moving forward, and now Saber had nothing to fear.

"Let's take a break here, Caster!"

Filled with fighting spirit, she raised the Wind King's enchantment and slashed at the Sea Devil mercilessly.

"Wow, what is this, it's disgusting!"

Illya, who arrived a step late, marveled with curiosity.

"Illya, be careful, that sea devil's magic is extraordinary, it should be a Servant. 」

Hearing Miyu's words, Emiya Shirou looked at the sea devil from afar and guessed.

"Is it Caster?"

"Ahh 」

"Mom!"

Seeing Alice Phil waving to herself below, Illya excitedly stepped on a slightly cute step and ran over.

"Illya, although you have this little wand, I won't allow you to go to war this time. 」

Alice Fell pinched Ruby, who was flying around Illya, with two fingers, and stroked Illya's head and said softly. Hearing this, Illya pouted with some dissatisfaction.

"Ahh

"Because this time is different from the previous ones, the level of danger is not a level, even Saber and the others can't win easily. 」

"That's true. 」

Shirou, who walked slowly with Meiyou, echoed and turned his head to look at Meiyou.

"Miyu should stay on the shore too, it's safer. 」

「……」

"But Mom, I want to help you. 」

"Illya......

"It's strange that we're standing in a safe place because we have enough strength, and I want to help Miss Saber!"

"I'm thinking the same as Illya!"

「……」

Looking at the determined eyes of Illya and Miyu, Alice Fell hesitated for a while, and Shirou on the side also scratched the back of his head in annoyance.

"What does it matter. 」

Lancer, who had been silent, spoke.

"Just let them go. 」

"But ......"

"As long as he's on the sidelines to help. 」

Lancer turned his head as he spoke, and his gaze was in front of him, Shirou Emiya, who had been training his skills head-on. As if determined, Alice Fell sighed.

"Okay, but don't get too close. 」

"Thank you, Mom!"

The two of them looked at each other with a happy smile, and after thanking their mother, Illya took Miyu and ran.

"Ruby!"

"It's coming, it's coming!"

"Safia!"

"Do you want to transform? Miyu-sama. 」

'Hmm' nodded in agreement, and the two holding hands jumped into the river at the same time, their bodies instantly covered by light, and flew towards the huge sea demon in the center of the river.

"Elijah...... I've grown up!"

Looking at the back of Illya who was heading to the battlefield, even though it was not the same world, Alice Fell smiled happily at the growth of her daughter.

"I'll leave it to you, Shirou. 」

"Ahh 」

With that, Shirou stretched out his hand towards the void.

"Trace!"

A charcoal-black longbow appeared in Shirou's hand along with the sword.

"On!"

The shape of the sword began to change, twisting into the shape of an arrow, and Shirou began to draw arrows with his bow.

"Are they all treasures?"

Lancer, who had seen it all, frowned. Hearing this, Shirou chuckled and answered Lancer's question.

"These are just fakes. 」

The Noble Phantasm Akahara Hound, under Shirou's operation, turned into a crimson light bullet and vibrated a barrier called air and shot at enemies in the distance.

The crimson light bullet hit the Sea Devil's head with unmistakable accuracy, and the powerful power possessed by the Noble Phantasm also exerted its due power at this time. The sea devil, leaning back slightly from the powerful impact, roared.

A large number of tentacles broke through the water, and the disgusting slime on the tentacles glowed in the moonlight, and the water surface was unstable like a tsunami due to this change.

Saber, who stopped and retreated to avoid being covered by the tsunami, was surprised to find two figures flying above him.

"Miss Eliya, Miss Miyu, why are you here? Get out of here, it's dangerous. 」

"How can I help you, Miss Saber!"

"Help us?"

Saber, who heard Illya's answer, was puzzled for a while, and Miyu, who sent out a scatter bomb and forced back the tentacles, also spoke.

"We have what we can do. 」

"No kidding. 」

Saber, who reacted, waved his hand in retort.

"That sea devil is Caster, how could a magician ...... Servant?"

Halfway through his words, Saber was suddenly stunned, and involuntarily turned his head to look at Emiya Shirou in the distance. After a long silence, Saner raised his sword again.

"In that case, don't die easily!"

With that, Saber stepped on the surface of the water and rushed towards the sea devil. The water rippled, and Saber didn't hesitate to swing his invisible sword to slash the attacking tentacles...

……