"Crackle~"

Tongues of fire licked through the dry branches, making a slight popping sound.

The night in spring was a bit damp and cold, but sitting around this small campfire was enough to ward off the chill.

What's more, there is also a steaming pot of mushroom and wild vegetable soup on the bonfire, and the salted dried fish that has been slightly cut and thrown into the soup for flavor has been completely stewed in the pot, and the milky white soup that is tumbling from time to time can feel a burst of warmth flowing through the body just by smelling it.

Outside the fire, there was a hare with a browned skin. The golden grease slowly seeped down the cut-open skin, reflecting the light of the fire and taking on a moving amber color, falling drops on the hot, charred wood below.

With a sizzling sound, the rich aroma of meat spreads along the heat wave to the surroundings.

"......, and then you stopped on the side of the road after fighting the transcendent witch. Oh? It looks like the meat is roasted. ”

The nightingale, with a somewhat hoarse voice, ended the story, got up and stirred the boiling mushroom soup with a spoon, sniffed it, and with a happy intoxicated expression, filled herself with a bowl of dry straw that she sat on by the campfire.

Maybe it's because it's always been the reason why you always need to use a strong shell to protect others, and the nightingale has accumulated a lot of words in her heart but can't find the right person to talk to, tonight for some reason, in the face of an ordinary teenager, there is a kind of unreasonable peace of mind and trust, and in one breath, the words that have been squeezed for nearly half a year are said happily.

From the novelty of the first arrival in the border town, to the break with Hakla. From participating in the fight against the tide of evil beasts, to welcoming the remnants of the Mutual Aid Witches to join. From the attack and defense of the Long Song Fortress, to the first encounter with the transcendent witch before.

The real history of this world has never been so clearly displayed in front of Wu Yu, perhaps in the eyes of the nightingale, what he said is just a scattered story like chatting in the north and the south, but for Wu Yu, who has read the original book, it is like a key to the screening room, and a complete memory as if he had experienced it in his mind exploded.

Above the dome that Wu Yu and the nightingale could not see, the light path connecting the world of reality and fiction suddenly condensed a lot, and even the naked eye could see that as Wu Yu drank the mushroom soup in this world, some small points of light were flying along the passage towards the other end.

……………

"By the way, this book is something that His Highness Roland intends to learn from all the townspeople in the future, and I have finished reading it, so I will give it to you as a reward for listening to my complaints today and for this good meal."

The nightingale, who was cutting rabbit meat with a knife, looked back at Wu Yu who was in a daze, took out a brand new booklet from his body and threw it into Wu Yu's arms.

"Anyway, I've already finished reading it, you can study hard by yourself in the future, and if you don't understand, you can ask me."

——— Elementary Mathematics?

"Just you?"

Wu Yu looked at the nightingale with a little care and pity, as a high school freshman who had successfully struggled to complete the nine-year compulsory education, if he still needed someone in front of him to teach, it would really be a shame for the generations of traversers.

"Since it's a book for the townspeople, you don't need to ask Sister Nightingale to figure it out."

Although there is a roommate who is suspected of being a top student in reality, at least at this moment, Wu Yu feels that he is still a genius who shines with holy light standing up to the sky.

"What kind of eyes are you, well, I'm telling you that this book is not as simple as you think."

Trying to swallow a piece of rabbit meat, the nightingale, who had been walking in the shadows since childhood, undoubtedly understood Wu Yu's meaning, and angrily snatched the "Elementary Mathematics" in Wu Yu's hand and turned to the back pages.

The nightingale, who felt obviously despised by a little fish seller, pointed to a place in the book, looked at Wu Yu defiantly and said.

"Just these ghost talismans, you won't even be able to enter the door without me teaching you."

"When...... What is this?!"

Knowing the combat ability in front of him through the original text, the starry nightingale was a hopeless scumbag, Wu Yu casually glanced at the spread out scroll, and his mind was full of thoughts on how to behave as a smart normal citizen of medieval culture.

And even if you encounter a problem that you can't know, you can rely on the perfect repair ability in this world to do a little bit of cheating.

A big title: Trigonometric Functions.

The following content is all blank.

"This, this is the content of high school, it's out of the curriculum." , I haven't learned something, how do you let me make up for it!

An ominous premonition arises, as if I have overconfident before, and the author of the book doesn't seem to have any formulas in the book.

Why does elementary math include high school content, "That's not what I expected!" ”

"I don't understand, but what about this?"

Suddenly, the nightingale was as excited as if she had discovered a new continent, and looked at Wu Yu's eyes that were unfocused because the scroll in front of him was blank, and turned a few pages back with great positivity.

[Analytic Geometry]

There was a big blank space, just one name, well, yes, I had seen the teaching assistant of this book on Bing Xiaot's desk. However, God knows what it says.

Wu Yu's eyes became more and more hollow, did he actually want to be mathematically despised by the nightingale, no, he wanted to prevent all this from happening.

Some of them snatched the scroll from Nightingale's hand in anger, this elementary math book is not always a high school textbook, and nothing can be said to be the object of pity and ridicule by Nightingale, a scumbag of scholars appointed by the creator god.

Flipping forward to the place where there was finally a word, looking at the familiar functional formula, Wu Yu showed a smile of victory, [Equation and Factorization], it's no problem for me to be a cram school teacher not long after the middle school exam.

"Sister Nightingale, ...... here"

The whole world picture suddenly stopped, and Wu Yu's smile stiffened on his face.

"Bang Da~"

A subtle, but incomparably clear voice came from the body of "Yuzu".

The last grain of sand on the classical and delicate hourglass hanging from the sky fell to the bottom, and a wave of intense dizziness and attraction spread through Kureha's soul.

Wu Yu, who had completely lost the ability to control his body, looked at the smile on his face in front of him, which originally represented victory, somehow turned into a shame.

"Sister Nightingale, I really can't understand it here."

"It's okay, I know, let's start with the basics, stretch out your fingers, and I write that character to represent a few fingers."

"Well, yes, Nightingale, are you witches so smart......"

“……”

There is no face to go to the book review area and the group to show off that he has crossed into the world of witches, and Wu Yu, whose consciousness is gradually dissipating, has a thought in his heart, he must study hard, at least higher than the basic knowledge shown by the author in the book.

Speaking of which, what ......is the author's academic qualifications?

Wu Yu, whose thinking was becoming more and more difficult, finally fell into the darkness.