If you could look down over the underground library, the shape would look like "convex".

And the protruding part of the "convex" corresponds to the location of the prohibited compartment.

Walking through a maze of bookshelves, checking the feel of the yarn stretching from the entrance.

This is to make it easier for anyone who tries to break into the no-paper compartment to go there.

Especially since I've been in here many times in the game era, I can remember the directions completely, so it doesn't mean anything to me. I am confident that I can meditate on anything.

That said, there is no reason to go ahead, so I followed the guidance quietly and walked from right to left in the maze.

The knights walked through places they'd passed many times to keep me and Iris from remembering the way, and after a long walk, they finally arrived at their destination.

At first glance, the door to the forbidden section was just an iron door, but it was unusually strong for iron.

It was more like a polished silver door than iron.

So I try to throw the feather pen that I had stolen from the official who left earlier.

Then, strangely enough, the feather pen that flew straight fell to the floor, being played by something that was somewhat invisible in front of the door.

Seeing that, when I was convinced that the barrier was working after all, Ethel suddenly approached me and got angry. As expected, Ethel came close to her face with an incredible swordscreen.

”Toruuuuuuuuuuuuuuuuuuuuuuuuuu!!”

I just wanted to make sure that the barrier really exists for everyone!

"Hah!?"

"Please, I'm sorry. I'm sorry."

"You think you can tie me together for only 10 gold!?" Next time, I'll beat you up and knock you out!! "

"Ho ho ho!?"

Ethel grabbed the bribe she gave me and slammed her fist into my stomach. I was shocked and rolled to Iris's feet.

With an exaggerated way of rolling, Ethel quickly checked the notes she had given me along with the 10 gold coins.

Then, as she pretended to be damaged, her face was distorted and she looked up, and Iris and her eyes turned to the cold gaze.

”Hah... Sakurai-san, please stop it.”

Ugh. ─ ─

――

Take Iris's hand and stand up, whispering what you need to tell her in her ear.

With a cold gaze on me, she turned to a serious look and confirmed it, prompting me to continue apologizing for the noise.

Mr. Cordelia stops slightly in front of the door and holds her hand.

When the curled hand touches the invisible barrier, the space begins to wave and gradually begin to shine. The barrier began to show its appearance.

The Knights Guard stood apart from Cordelia, who was immersed in the task of dismantling the barrier.

On the other hand, I was the right knight, and Iris stood slightly behind the left knight, and Ethel was simply close to Cordelia.

I pretended to lean against the bookshelf and pulled out the appropriate book, twisting the thread around it.

I'll solve it.

The barrier flashes as if responding to Cordelia's fiery words when she lists an aerial cross that is as long as the one in her hand.

The flash repeats a short but strong blink.

It was effective enough to dazzle people and deprive them of vision, and even I, who understood the production, had a momentary delay in the beginning.

The knights pulled out their swords in a blinking vision.

Iris pulled out a long stick tangled in her hair and ran out.

Then I threw a book with threads around it, and Ethel ran out to protect her mother.

"Now I can use it...!?"

When Cordelia noticed the anomaly, the knights had already swung their swords at the top.

And just before it was swung down, Iris slipped in front of the left knight.

What are you going to do!

The long bar waved along with the sound of bullets flashes from the left knight's slashing from the upper stage, and the long bar skillfully moved in a compact circle is pushed into the knight's head.

Although the response was definite, Iris lowered the stick in front of her for a moment as a further pursuit, and slammed the thrust using the spring of her body, rolling the knight backward to create a distance.

But there was not one knight. The remaining knight on the right side approached Cordelia.

Physical books!!

But it was my thick books that blocked it.

The mass thrown along with the speed hit the knight holding the sword and the knight removed the sword.

When I pulled the thread at hand, the book that had been thrown at me stood still in the air for a moment. And the next moment, he jumps up and hits the knight in the head.

I ran out while manipulating the thread, and as I entered the pocket of the knight who stepped on the thread, I poked my throat with the book that I had returned to my hand, and instantly turned my waist and punched the book that had been pushed against my throat with the upper cut from below.

"(What? Something is wrong with you?!)"

The discomfort I felt when I hit the knight. But I didn't have time to examine it.

Reinforcements from behind came from the knights who had become assailants, six of them. It was a bow, not a sword, that was holding it in its hand.

Bow and arrow, damn it!

Reinforcements appeared through a thread that stretched from the entrance of the underground library.

I was prepared for the assault because I sensed that the door that was supposed to be closed was opening and someone was coming in through the vibrations transmitted by the thread.

However, the vibration alone only showed a rough number of people, and I didn't expect to bring a long-range weapon.

Iris, please!

Yes!

The Knights Guard who attacked us first were not yet fully conquered.

So I rushed out to get a knight's sword that would roll to the floor, leaving Iris to follow.

"[Yarn Embroidery], [Sewing: Spider-Wind!]"

When I saw the knight rolling back up after being hit back by Iris, I used one of the moves in the "Yarn Embroidery" skill, "Spider Wind", a derived technique from "Sewing Up: Spider Web" that inhibits its behavior when stepped on.

When the ball of hair formed in the palm of his hand is thrown at the knight, it is untied so that it can bounce the moment it touches the knight, tangling and stopping the movement of the knight who has just regained his posture.

But I knew that behavioral inhibition wouldn't last.

"Spider Wind" is an immediate technique that can directly throw a trap made at hand to inhibit action, but it is less binding than "Spider's Web".

In terms of the difference in the game, the "spider wind" is light in resource consumption but the effect is weak, and the "spider web" is heavy in consumption but the effect is about the same.

Iris waved the arrows one after the other from behind, and I took the sword that was rolling on the floor.

The weapon in my hand was called the "Knight's Sword of Steel," and it was a better weapon than the usual number of hits.

The [Spider Wind] was cut open with its own power, and the knight started moving ahead of his sight.

I ran towards the knight who was sandwiched between Cordelia-san and Ethel, who had reached my mother.

Come on!

――――

I tied it to a blade and two slashes that were swung silently.

The discomfort I also felt was caused by the crafty sword technique to be called elite.

Third-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-half-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-three-

However, the knight did not become frightened, nor did he raise his voice of bitterness, but came to beat him with his fistless arms.

In response to this unusual reaction, I arrive at the identity from the sharp cross-section I saw when I slit my wrists.

"(No way. Does that mean it's the killer?)"

I put a fistless fist around the back, put a blade around my waist, and sewed it to a nearby bookshelf.

Leaving the knight to escape, I picked up the sword with the wrists of the knight that had been cut off and turned my body toward the knight that I had beaten down.

As expected, the knight who was supposed to have beaten up was grabbing the dagger and attacking Cordelia-san.

"Mom! Watch out!"

Ethel slammed her mother and made the rosary hanging from her wrist giant enough to become a shield of a blade.

However, there was no way that a small Ethel could directly grab the body of a trained knight, and the attacking momentum was pushed down as it was.

"It's just...!"

Ethel!

I put a rosary between the knight and myself, and when I rushed under Ethel, who held the dagger in front of me, I kicked the knight's flank with all my might.

However, thanks to the power of physical abilities (stats) supported by mob characters above their level, I managed to kick the knight over Ethel.

I slashed my head with a sword that swung like a chase.

"Ethel! Are you all right!?"

"Ahh, what's the matter with you!?"

"I'm not sure, but I've been betrayed and attacked." Is there a way out? "

There's no escape other than the way you came!

Responded as expected to a question I didn't expect.

There was no alternative route to the underground library in the game era, so it was only natural.

Then there was only a head-on breakthrough, but Iris and I were still looking forward to protecting Cordelia, a non-combatant, in addition to Ethel.

Sakurai-san! Up!

"---!"

Reacting to the voice of Iris, who was blocking the arrow from the rear, I looked up and noticed that an arrow that depicted the trajectory of a mountain was emitted from the shadow of the bookshelf further behind the reinforcement.

No, a mountain is a sharp angle that avoids colliding with the ceiling and comes flying in, which deviates from the physical laws of reality.

From its trajectory, this is due to the skill of "Archery: Curve Shooting".

More than 10 arrows are coming after a course that will accurately shoot down Cordelia, who will be invisible from where she was fired.

Shit!

Cordelia rushes forward and activates one of her Yarn Embroidery abilities, Sewing Up: Shield Kasabashi.

In the game, a number of round barriers formed by threads emerged, and the technique slightly increased the defense of all the companions, but the barriers that could only be created with reality had physical defense.

Cordelia sees and flashes an arrow that hits a barrier in the air to protect her.

However, its defensive power, which was originally subtle in the game era, is similar in reality, and only one arrow can be captured against a single barrier.

At the same time as the arrow is played, the barrier formed by the thread is untied and its function is lost.

Then, the "curved fire" that was released over the bookshelf continued not once, but twice, but three times.

It's impossible to capture all of them with a single skill activation, so the arrows that slipped through them had to be thrown down with their swords.

The [Thread Embroidery] skill allows you to use your moves if you have one free hand, so you can keep putting the barrier back on while waving your sword. Unless the attack stops, I and Iris will be nailed to the spot.

"(If Ethel and Cordelia can handle the arrow on their own, we can still handle it, but if we stay like this, we'll be poor. Yeah, the enemy and allies are in the way!)"

"Sakurai-san! Keep going!"

I know!

If it is good to abandon it, I will think of a breakthrough because I don't feel like abandoning it at all.

I wonder if Iris understood that the situation was not good as it was. I was impatient with her expression.

This situation, which is being betrayed and attacked by our allies, is irresistible to reflexive thinking.

If I break this, I want time to calm down and summarize my thoughts, even if I know that it will be disadvantageous later.

If I don't move forward, I want to go back and end the battle...... I think so, and I slash down the arrows and ask Cordelia a question behind me.

"Mr. Cordelia! From the inside of the forbidden section!" You can re-paste the barrier!? "

"Yes, but where to escape from there, etc."

The strength of the barrier!

He's very strong, but he just ran in.

"The Knights are strong enough that they can't help it!" As long as you don't bring me your master! What are you going to do!? "

"I'm going to rearrange the divider! Anyway, it's time to calm down and think--"

― ― Zocchi and chills.

Before I could respond to the intuition that informed me of the danger, the identity of the chill came flying in.

And it appeared from the side, not from the front or from the top... that is, through the bookshelf.

It was not an arrow that appeared between me and Mr. Cordelia, but a chain with a tip that looked like a bow.

The chains pierced straight into the opposite bookshelf as if to sever me and Cordelia, and it was unclear what trajectory I had drawn, but I broke through the bookshelf again and pointed the spear at Cordelia.

”I'll let you ahhhh!!”

Ethel screams and pushes her down to cover her mother, causing the chains to lose their target and pierce her back into the bookshelf.

However, the momentum is not weakened, as if the chains are willing to correct the trajectory and pierce through the top plate of the bookshelf, and bend several times at right angles to aim at the mother and daughter who are rolling under their eyes again.

Shit!

I cut my gaze back as I prepared for the raining arrows to hit me myself, and I slashed the chains that cut me and the two of us apart.

However, the chains that fall from it will not change their trajectory. But I knew it.

From the impending chain, my mother hugged me to protect my daughter.

It was enough to resist the two of them already rolling on the floor.

I reflexively release a prick as I step into the tip of the chain.

Fortunately, they were not that far apart. By placing the blade of the sword on the orbit of the chain, I tried to play it or deviate from the orbit.

Shortly thereafter, the body leaned firmly.

The arrow that was diving through the barrier of [Yarn Embroidery] was shooting through my shaft foot that had assumed the position of a prick.

The body collapsed and the stretched sword headed toward the unknown direction.

I couldn't possibly protect Ethel and the others from the chains.

When I got here, there was no way to do it anymore. I bite my back teeth and put a flame on my sword.

"[Fire Sword]!"

An underground space with old books that are easy to ignite in all directions. I couldn't find an escape route surrounded by the enemy.

It was obvious what would happen if the fire was set in such a place, so I had refrained from using the [Fire Sword] until now.

But if we don't help Cordelia here, we won't even be able to escape into the Forbidden Lot.

Since it was unclear what the barrier that could be affixed to the compartment would block through oxygen, etc., I did not want to start a fire near the entrance, but I can no longer say 4-5.

The flames wrapped around the sword explode, creating propulsion and forcibly modifying its warped trajectory.

The blade slid in and touched the tip of the chain, sparking with the high clashing sound and playing the chain.

"Whoa!?"

Mom!!

However, perhaps because the chain was played from an impossible direction, the tail of the chain following the tip swayed forcefully and struck Mr. Cordelia's back.

The chain not only wears clothes, but even the flesh beneath them. Ethel screamed at the pieces of meat splattered by physical damage.

"Mom, hold on! Mom!!"

"Esse, Le..."

"Ethel, go in the back! Come on, Iris, let's go!"

"Ah, yes!"

The strands you play are instantly sewn to the bookshelf using the "Yarn Embroidery" skill.

Still, I decided that I would only have to buy time for the powerful chains, and I urged everyone to retreat with a short slash to make it easier for me to move the arrows I stabbed in my leg.

The barrier that protects the Forbidden Plot has already been broken down, so only the Iron Door blocks entry.

By throwing the sword near the entrance and using both hands to manipulate the thread, it increases the number of "shields" and protects everyone from all the arrows that come towards it in a short time. Meanwhile, Iris, turning over, breaks the door leading to the forbidden compartment.

Then, Iris carried the wounded Cordelia with Ethel and ran into the forbidden compartment.

Although the arrows that slipped through the barrier of [Thread Embroidery] cracked their limbs, they were lucky to avoid a direct hit.

"I'm closing the barrier... inside...!"

Sakurai-san!

"Iris, please!"

Iris, who managed to escape to the inside of the door, accumulated magic to activate magic.

Iris was able to use magic, but her ability to build was basically warrior proximity.

Therefore, except for the preliminary ones, it was essential for her to have time to chant before she could activate her magic.

I'm coming!

With the end of the chant, the magic power is released and the magic is activated.

The long stick in his hand shows that, and then a wall of ice is created between me and the knights who shoot arrows, which is so large that it reaches the ceiling, and he breaks me apart.

This closed the path to the ground completely. I could see the ice wall shaking and gradually starting to crack as the arrows slammed into it.

"Durability is difficult with an emphasis on immediate effect!" Hurry up! "

I ran to the door by skipping to cover my shotgun legs.

On the way, just in case, I shot the [Spider Wind] into the chain that was coming out of the yarn restraint, tangled the yarn again, collected the sword that was thrown near the entrance, and walked through the door.

As I worked with Iris to close the heavy iron door, I heard the sound of the ice wall that she had built collapse, and the sound of something clashing against the door from the outside.

"I'll seal it...!"

The moment she closed the door, she held up the wand that Ms. Cordelia, who was constantly breathing, held up.

For example, in order to make it much easier to lock the safe than to unlock it, the barrier that protects the forbidden compartment was revived at the same time as the saintly lady put out her cane.

The clash of bows and arrows that could be heard from the outside disappeared, and when I opened the door and looked in, I could see that the invisible barrier blocked even the levitating chain that was targeting Cordelia-san.

The fire generated by the "Fire Sword" earlier ignited a part of the bookshelf, and from there it burned while raising black smoke.

However, the smoke was blocked by the barrier, and the knights who judged the attack to be futile were beginning to extinguish the fire.

"(Can I just take a breath for now?)"

This time, I let out a sigh while tightening the door.

Iris and Ethel immediately hit Cordelia-san, who had her back scratched, and I pulled out an arrow that shot through her leg while sitting with the door behind me, using the cheap potion I had hidden in my pocket for first aid. The highly potent potions had already been thrown at Ethel and the others.

Well, what's the matter?

Exactly like a rat in a bag.

In addition, when escaping, it was a condition that "no one here can abandon or use it to discard pawns".

Mmmhhhhhhh...

Ignoring the desperate state of Ethel and the others, I couldn't help but be patient and let out a deep resentment.

I looked around wondering if I could come up with anything, even though I felt angry that just doing research in the library would have to suit my eyes.