The day after Ray arrived at the town of Gilm.When Ray had finished his breakfast and was ready to go out, he had come to the stable.

"Grunt!"

　Seth, seeing Ray entering the stable, was chanting with joy.

"Did you sleep well last night?"
"Glu".

　A set that stretches as if it were full of energy.He scratched his head with a smile.

"Well, what are you going to do today? I'd like to do some research there, just in case, because there's a library here. ... Are you here, or are you going to come with me? Well, you won't be able to enter the library, so you'll be waiting outside the same way as you did in yesterday's Adventurer's Guild."

　She rubs her head against Ray's words.The whole body appealed to her to take her too.

"I see,"

　Ray takes Sett out of the stable with a smile on his face.
　As Drum told him that he would take Sett out of the stable at breakfast, he and Sett would go out into the street without any particular concern.
　As soon as Sett showed up on the street, people walking down the street like yesterday walked back a few steps with a look of amazement, but there were far fewer people who ran away screaming, perhaps because of some information about Ray and Sett in the past day.that some of them had fled without seeing a necklace proving themselves to be Timmonsters or Summoners.
　It was not until I heard from the drum at breakfast that the necklace was named "Juma no Neckazari."

"Glu".

　Seeing such reactions, Seto sings deep in his throat.I patted my partner lightly on the back and walked to the library I heard from the landlady at breakfast.
　Walk along the main street, pass by the adventurer's guild, buy delicious skewered meat at a stall, and eat it with Seto.though he bought thirty pieces of grilled skewers for a few silver coins, for the size of Seto and for the size of Ray's diet.
　However, he must have judged Ray to be a good customer after seeing him shop in such a large amount.Or he might have judged that he was relieved when he saw Juma's necklace, but many people actively approached him.From the merchant's point of view, it seems that the customer is the one who spends money on everything, even monsters.
　"When I was walking along the street while I was eating like that, I could see the building that the landlady told me about."It's a library. However, it's said that Gilmoo is a remote city, so the number of books in the library is not that large.However, this was the only place Ray could find the knowledge he needed.

"Seto, wait here".
"Glu".

　Like yesterday's Adventurer's Guild, he breaks up with Seto in the retreats of horse-drawn cars and summoners.

"Welcome.Would you like to use the library?"

　The receptionist, who is right inside the building, approaches the building with a nod.

"Yes, it would be helpful if you could show me how to use it."

　The receptionist, who is thought to be in her mid-20s, continues to speak with little change in her expression.

"You can use the library for five silver coins a day.However, this includes a security deposit in case you damage the book, so if you do not damage or stain the book when you leave the museum, we will return three silver coins.Also, please note that if more than three silver coins cause damage or dirt, you will be asked to pay an additional fee.If you run away without paying, you will have to ask the adventurer's guild to collect the fee, including the fee.We sell a set of 10 pieces of paper and 3 pieces of pen for copying something."

　Ray frowned slightly when he was told that he needed five silver coins, including a deposit, to use it, but he paid the fare without any complaints.
　When Ray was on Earth, he had access to the library for free, but books are so expensive in this world.It is not uncommon to buy precious books in white or light gold coins.

"Yes, indeed.Please get the librarian's signature on this document when you exit the library.If you did not damage the book, there should be no problem.I will pay three security deposits in exchange for this document.Take your time, then."The receptionist gave her a piece of paper in exchange for a silver coin and bowed her head flat.He laughs bitterly at the difference from the way he uses the library he knows, but takes the document and goes into the actual place where the book is placed.

"... I see,"

　That's what Ray said when he saw the inside of the library.
　In Ray's sense, the bookshelves are regularly lined up in places that should be described as the size of a few libraries in the school.There were books of all sizes and sizes, and a few sets of desks and chairs for four people were arranged near the librarian counter.
　Ray was watching the situation, but he gave up looking for the book himself and immediately headed to the counter to talk to a middle-aged man in his 40s who seemed to be a librarian.

"Excuse me, but may I have a moment?"
"Yes, what is it?"
"I'm looking into a man named Zepyle. Do you have any books to do with it?"
"Zepile? Wait a minute.I think I've read it somewhere before..."

　The librarian, who had been trying to remember something for a while, immediately opened his mouth with a smile.

"Oh, if you think it's a name you've heard somewhere, it's a witch's name."
"... a witch? What's that dangerous name?"

　Ray listened to the words unexpectedly, but the man in the librarian asked with a strange looks.

"Is that not it? I only know that it's a famous name for zepile."
"... for the time being, do you have a book about the witch?"
"It's a kind of myth or fairy tale, so it should be on the shelf on the right side of the dead end if you go straight down the aisle there."
"I see. I'm saved."

　He thanked the librarian, moved to the bookshelf where he had taught him, and took out a few books which seemed to be relevant to him, and moved to his desk.

"Well, what will come out?"

　It was a situation that seemed to be way out of line with what I had expected, but you should still know what you know about zepyle that was fused with you.Then open the page of the book and read it.

　Zepail, a person who is said to have existed thousands of years ago, led a group of magicians.It was not so special, but all the magicians he led were said to be among the best in the world at that time, and he himself had the magical power to lead such magicians.
　It is said that his military power was a gathering of magicians who could instantly destroy a country, and therefore, he was treated as a dangerous person by many countries at that time.It is said that some countries tried their best to make their military forces obey them, but in the same day, all of them disappeared.He is a person who has mastered magic because of his magical powers.In other words, he came to be called a demon.

「……」

　Speaking of the excess, Ray pressed his forehead without thinking of the excess content.I thought there was a certain amount of time difference between the knowledge I had drawn out and the reality, but I never thought it would be thousands of years.According to Zepail's self-reporting, it's been several hundred years.By nearly ten times that difference Ray could only hold his head in his head.
　But now that I've come to this world, I can't do anything about it.forced him to accept that he had no choice but to live in this world, and returned to the bookshelf without reading any more about Zepyle.
　After that, for the sake of my mental stability, I read books that seem to be useful for adventures and books that contain knowledge that seems to be useful in this world.
　When I read them, I realized that there was no difference between 24 hours a day, 30 days a month, 12 months a year from the earth, or that there was no difference between the earth, water, fire, and wind.
　However, since watches are a kind of magic item, only merchants and nobles have them.Then how do the others know the time?It was the sound of bells ringing every three hours in the city.The bell rings six times a day at six, nine, twelve, fifteen, eighteenth and twenty-one o'clock, and the general public generally knows the time.In addition, he reads through books that seem to be necessary for an adventurer, but Ray's most interest was in the book titled "The Devil's Demolition Beginners."
　After all, it was good to remove the fur from the water bear, but it was bought cheaply because the disposal was so careless.As long as you live as an adventurer, you can say that the way to dismantle demons is absolutely essential.Nevertheless, Ray decides that it takes too long to copy the whole book, so he talks to the librarian.

"Excuse me, may I have a momentarily.
"Yes, what is it?"
"Can you buy this book?"

　When Ray saw the story, the librarian shook his head with an expression of regret.

"I'm sorry.I don't buy or sell books. If I start, there's no end to it.-- oh, but,"

　While apologizing, she looks up at the book Ray gave her, as if she had noticed something.

"But?"
"Well, I think there was the same book in the bookstores in town.I saw it about two weeks ago, and I only had one book in stock, so I'm not sure if it's still there."
"No, I'm saved.Could you tell me where the bookstore is?"
"Yes,"

　After hearing the location of the bookstore from the librarian who nodded, he hesitated.
　I would like to read a little more if I could, for I had paid a considerable amount of money for two pieces of silver in this world.However, I want to buy whatever book the librarian says he sees in a bookstore called "The Devil's Demolition Beginner."Ray hesitated for a while, but the books in the library were not going to disappear, so he decided to come again later and had the documents signed at the reception desk, and left the library with the deposit back.

　After that, he and Sett, who had been waiting outside the library, paid a considerable amount of money to buy the book they wanted to buy the book.and returned to the Wheat-tei at dusk, buying other clothes and small things.