I Became a Swordsman in the Middle Ages.

"Domain, huh? Quite impressive for a mere human."

The demon considered this nothing special.

They were only startled by the sudden appearance of a strong opponent.

The presence they felt still didn't match up to themselves, a high-ranking demon.

"I'm sorry."

Sisillia pointed her sword with a gloomy expression.

"I'd like to take my time enjoying this, but I promised to do this mission properly."

"...Are you trying to deceive me?"

The demon stood before Sisillia with bloodshot eyes. Sisillia spoke without moving an inch.

"Yes."

"You, you, you...!"

Just as the demon's face was turning red with anger.

They hastily stepped backward.

Drip drip-.

'Wh-what?'

They covered their mouth.

Blood poured from where their jaw had been cut.

They looked at Sisillia in confusion. Her sword was stained with red blood.

Though it healed immediately, they hadn't even noticed when they were cut.

'I see. So, this domain's effect is a 'guaranteed hit."

But they realized it just now.

This domain's effect probably 'definitely' lands attacks.

Also.

'Humans were caught in the range but couldn't enter the domain. She must have pushed them away on purpose. Why? Having greater numbers would obviously be advantageous.'

The domain's 'guaranteed hit effect' weakens with multiple targets. That's why she deliberately trapped only them.

It made sense since domain-type abilities are typically weak against large armies.

The demon grinned.

"What a shame. You possess talent rare even among demons, but unfortunately you met me."

For good reason - their 'authority' could perfectly counter this domain.

"Victory is mine."

The demon laughed eerily. However, that laughter didn't last long.

"Why?"

'Again.'

The demon gritted their teeth.

'Again, from my blind spot...!'

"You're weak, you know."

Sisillia's sword came flying in. The demon raised their arm to block this time. However, Sisillia's sword cut through the demon's arm entirely and struck their neck.

"Kuh."

The demon hastily retreated and grabbed their neck.

Bang!

With the sound of air bursting, Sisillia rushed in with terrifying momentum.

The demon stepped back instinctively, and their body touched the Wind Shear curtain for about 1 second. They were caught in the wind at that moment, and their entire body was torn to shreds.

"..."

Sisillia stared with cold eyes at the demon who had been dismembered and become part of the curtain.

Sigh, she let out a breath.

"There's a limit to how stupid one can be."

Can't you tell just by looking?

Wind Shear was a storm made of wind blades.

Touching it is the same as putting your body in a giant shredder.

"Ahahaha."

However, the demon's voice came from right behind.

Sisillia's silver eyes eerily scanned the ceiling.

Pieces of a body being shredded by the wind.

Not the demon's, but a human's.

"That was quite impressive. But can you still kill me now?"

A young girl about 7 years old giggled.

Of course, this wasn't their true form.

It was Priscilla of Deception.

'So they consume one's presence, turn their soul into a servant - and the body is taken by the main body.'

From the start, even their earlier form must have been a human body.

Then, naturally, this demon's number of lives equals the number of humans they've consumed.

Unless their very existence is erased.

'An authority of this level should be on par with the Seven Deadly Sins' 'Gluttony'... talk about terrible balance.'

"Huh...? Wh-where am I?"

Priscilla looked at Sisillia with a terrified expression.

"Big sister...? Why, why are you looking at me so scary...?"

Tears fell from Priscilla's eyes.

It was as if the demon was telling her.

This wasn't an act but temporarily bringing out the actual girl they had consumed.

That the girl existing now was 'human,' not a demon.

"B-brother! Where are you...? I'm so scared... help me. I don't want to die yet."

Priscilla stepped backward with tears streaming down her face.

She was heading toward the Wind Shear wall.

Sisillia launched forward without hesitation and grabbed the child's hand.

"Hic."

She crouched down to match Priscilla's eye level.

Orange hair with brown undertones and freckles. The typical characteristics of those called 'gingers.'

These features were rare to see in the Kingdom of Lianen. Gingers were typically seen in the neighboring country.

But there was one ginger in the Windsor Knights.

-Then, one day, when I went to the dungeon, I found my dead sister.

Sword Emperor Zeriway.

"Big sister, won't you tell me?"

Sisillia reached out with sad eyes. She grasped the flower-shaped brooch pinned in Priscilla's hair.

-Hey, kiddo, I'm considering giving this to my sister as a gift. Do you think she'll like it? She's about your age.

It was identical to what Zeriway had shown 10 years ago.

Back when he wasn't yet part of Windsor.

"...Why do humans always become lenient when seeing young children?"

Stab.

Priscilla laughed grotesquely as she stabbed Sisillia in the abdomen with an arm that had transformed into a blade.

'How does it feel? To be attacked from your blind spot - your favorite method.'

But Sisillia still just stared at the brooch, not moving an inch.

Feeling a sense of déjà vu, Priscilla looked down to see.

The dagger wasn't in Sisillia's abdomen but somehow in their own stomach.

"...How?"

"The wind is fickle, you know. It happens often. Like when fire changes direction and burns a different target than intended."

"Don't think this is over!"

Priscilla screamed madly while pouring out all their magic power.

A high-ranking demon's power, combined with the presence of all the humans they had collected, went berserk.

'Normally, I would wait.'

What Sisillia hated most was 'one-shots.'

Nothing was more horrible than using pure specs to take down a boss pattern developers had worked hard to create.

But unfortunately, there was no time today.

Sisillia firmly gripped Priscilla's wrist. With just that, Priscilla's presence was extinguished like a candle.

"...!"

Sisillia's silver eyes fully captured Priscilla. Priscilla felt overwhelming terror.

"L-let go! Let me go!"

They struggled frantically, but Sisillia's firm hand didn't move an inch.

Priscilla's face grew increasingly pale. They felt overwhelming magical power.

Sisillia spoke softly.

"Wind Shear."

'Im-impossible! Creating another domain within a domain?'

Pop-.

It was a small wound. Priscilla's hand was slightly cut.

From that wound, thin lines spread out and drew in the surrounding air.

'No, this isn't a domain. Don't tell me...'

Priscilla stopped struggling. Then, they slowly raised their head.

"Monster."

At that moment, the surrounding wind formed a vortex, screaming like a sharp shriek.

Shrriek-!

With a sound like metal grinding against metal, pressure that tore through the atmosphere was injected into the wound.

The result was-

Molecular level annihilation.

Sisillia's beloved silence arrived.

"Monster, you say. How rude."

Wind Shear's true identity,

The most basic technique granted when first receiving divine protection.

Just a basic attack magic application 'countlessly overlapped.'

**

Before the enormous circular storm spread out.

At some distance away, Duke Aldred's forces were positioned.

"Incredible. Is this... truly the ultimate form of the Sword Demon?"

"We'd only heard stories, but seeing it in person, the pressure is different."

The three Sword Demons of the Gartan Knights couldn't take their eyes off the scene before them.

"Can we not enter?"

When Aldred asked, they shook their heads immediately.

"No one can intrude into that domain. That's how absolute its power is."

"This is absurd."

Duke Aldred chuckled.

"Becoming a high-ranking knight through judgment and insight, they say. Yet to anyone who sees this, she could've done it purely on violence."

He spoke coldly.

"Everyone, charge all available magic power."

There were no questions, no doubts.

The troops followed their lord's command without hesitation, using all their strength to charge magic.

"Fire when Wind Shear ends. Cut down the source of nightmares."

"Y-Your Grace!"

Betty spoke urgently.

"Please believe in Lady Sisillia. She will surely..."

"Of course, I believe in her. However, we cannot waste the 2 minutes she's bought us."

Aldred spoke without even looking at her.

He focused all his attention on Wind Shear.

"I, too, hope to see her when this domain is dispelled."

But most people here knew that was impossible.

Especially the Sword Demons who had faced its presence.

Though this domain was extraordinary, it couldn't defy the laws of this world.

No matter what technique you use, an egg cannot break a solid rock.

That was the one-sided common sense.

'Lady Sisillia can do it.'

Only Betty believed in Sisillia.

She prayed and wished earnestly with tears in her eyes, hands clasped together.

She looked almost like a saint.

Duke Aldred dared to imagine.

If Sisillia returned,

Perhaps humanity's salvation wasn't far off.

As if answering such wishes.

"Wind Shear is being dispelled!"

"Maintain charging until orders are given-! No premature release!"

"Yes!"

The moment Betty's tears touched the ground-

The eternal storm that had been raging endlessly began to gradually subside.

'Who is it?'

'Who won?'

Those who had already given up and those who yearned for a miracle.

Though their thoughts had clearly differed until just now.

At this moment, everyone's wishes aligned.

May peace and quiet follow after this storm.

"..."

Where the storm had retreated.

The clear sky was quiet, without a single cloud.

Below it, Sisillia barely standing, propped up by her sword with one hand.

In the subsiding wind, she proved a single truth.

Humanity's victory.

At that moment, cheers like thunder erupted, shaking heaven and earth.