The beginning of the incident happened on December 15th, on the eve of the winter vacation. In the classroom of Class 4, Class 1, High School of Liyuan Women's Academy, two students stabbed each other with utility knife after a quarrel.

January 1, 1999, Jialan Hall.

Flowers: "…How are the injuries of the two?"

Orange: "Injury is no big deal, the problem is something else. Both students were injured. Do you know what this means, flowers?"

Flowers: "...It means that after the quarrel, the two stabbed each other with a knife at the same time, right? That is to say, the two did not reach the result, and they came to the same conclusion without the intersection of the conversation."

Orange: "Yes, I'll tell you later that the content of the quarrel is that the problem is after the incident. The incident was not reported immediately, but the principal checked the health care room records after the winter vacation. When he saw the report of two people being injured, the incident broke out. It seemed that the instructor of Class 4 wanted to deliberately conceal this matter."

Flowers: "I think Mr. Xuanwu is not like someone who can do such things."

Orange: "The principal said the same thing. It seems that the instructor of Class 4 of a year is very trustworthy. After questioning him about this, the principal found that Gaoyue did not seem to remember this. But under the accusation of the principal, he suddenly remembered this. Although it sounded like a lie, it was not a lie. Gaoyue seemed to have forgotten that incident. Back to the topic, let me talk about the content of the two students' quarrel. Because the two were quarreling after class, some of the content was heard by other students, as if they were told because of their own secrets. And that was not an ordinary secret, but the secret that they had forgotten was revealed by others."

Flowers: “…Huh?”

Orange: "That is to say, the secret of childhood that he had forgotten was told by the other party. The two of them grew up together. If they wanted to ask who could remember what they had forgotten, then there was probably only Peter who grew up together. According to the investigation, they had been receiving strange letters for nearly a month, which contained things they didn't remember. At first, they didn't know what was said in the letter, but when they remembered that it was because they were afraid of the past, they couldn't help but feel creepy. When they felt something was wrong, they ran to ask the other party, but the other party said that they had also received the same letter. Therefore, both students believed that the other party was a prisoner, so they stabbed each other with a knife."

Flowers: "This is not a new method of intimidation, Mr. Orange."

Orange: "No, because the letter only contains forgotten past events, and the purpose is not to threaten and intimidate. Even if you monitor all day long like a stalker, you will not know that something happened before and even you have forgotten. It would be uncomfortable to say that it would be uncomfortable, that's true."

Flowers: "Teacher Orange, have you found the sender?"

Orange: "Well, the prisoner is a goblin."

Flowers: "...Hu Qian, can you please tell me again?"

Orange: "I said it was a fairy. What, have you not even heard of this? I heard that many girls with strong inspiration gathered in the Liyuan, so there are many witnesses in this incident. You probably can't see it because the focus of your eyes does not meet the spirit body, but this is quite famous in the accommodation room. At night, there will be fairies flying to the pillow. After waking up the next day, the memories of the past few days will become unremembered. Because collecting memories is one of the jobs of fairies, it should be done by fairies. The events of four shifts a year are 80% related to fairies."

Flowers: "Do you believe it by Teacher Orange? The stories of those goblins."

Orange: "Although I haven't seen it, it's inconvenient to say more, but there should be fairies in the Liyuan. Because there is an atmosphere, the school is isolated from the world, and there is no sound of cars on the campus. Under the rule of strict school rules and quiet nuns, the popular things of young men and women who are fanatical cannot enter the school. And the trees that occupy most of the school land must be as deep as a forest, and once you get lost, you may not be able to come out for a long time. The air is filled with a sweet smell, and time is moving slowly like an old woman... You see, isn't this like a fairyland located in the city center?"

Flowers: "You know very well, Teacher Orange, you seem to be familiar with the school when you listen to your tone."

Orange: "Of course, I'm a graduate there."

Black Tung Flowers looked at Aozaki Orange with "unbelievable" eyes.

Orange: "Why do you think the principal will talk to outsiders to discuss the school scandal? Last night the principal entrusted me to find out the cause of the incident. Although I am not running a detective company, it is the principal's request that I cannot refuse. But it is too conspicuous to ask me to sneak into the school. I really don't know what to do... Flowers, what do you think?... By the way, what do you think of when you hear the fairy?"

Flowers: "...A fairy. Uh, it's like a little girl with wings."

Orange: "The goblins are divided into many kinds, so it may not be necessary that there is that goblin. But they are all geeks that make magic. Goblins are different from demons. They are not physical fantasies formed by imagination, but a kind of creature that does exist, so there is no possibility of physical structures that violate biology. Like goblins (note: goblins who like pranks live in caves or forests) and Red Hats (note: An evil goblin that exists in the borders of England and Scotland, with long fangs and two claws like vultures), in some ways, they are pure goblins. Goblins and dragons are representatives of fantasy races. In Japan, pure ghosts are also one of them, and they often come into contact with us. They are not like demons who are born because of human wishes and are summoned.

The passive body of the body, but has its own subjective existence. It is said that there will be feigning pranks in Scotland now. Among those events, there is a kind of prank that will make people forget things, and it is like taking a child into the forest for a whole week, replacing a newborn baby with a feigner, and placing rabbit corpses at the door of the house... It is nothing different from a child's prank. But in those pranks that are completely unrelated, there is only one thing that is feigners have no concept of gain or loss. They only do it for fun, not for any result afterwards, but the events in the Liyuan Garden are different. When writing the memory taken in the letter, there are all malicious elements. In addition, the fairies that appear in the Liyuan Garden have flowers that you just imagined."

Flowers: "In other words, the goblins appearing in the Liyuan are artificial demons. They have malice because there are magicians who control them. Is that true?"

"Yeah." Orange Aozaki nodded, "I have explained before that they can be divided into magicians to provide themselves with a part of the clones and magicians, and they also use other animals as materials to make them to do things for themselves, because they only have the ability to steal human memory. Someone actually does this kind of childlike thing, which is boring... But this is also impossible. The control method of the fairy is not easy. The master often finds that without realizing it, he has changed from asking them to do things for them. This is because the fairy always mentions some unreasonable things.

Requirements. So since the beginning of the past, there are not many magicians who use fairies as magicians. If there are, they are all first-class experts. But this time it is different. Because the other party is a beginner who uses fairies to magic, you should treat it as a practice. Yes, that's it. Flowers, I ordered you as a teacher, with the purpose of finding out the truth. The deadline is until the end of the winter vacation. Although I don't expect you to solve the cause of the incident together, you can try it as much as possible... If it is a part of the cultivation, there is no way." Aozaki Orange stood up, "Then I will give you detailed information now."

Flowers: "But, Teacher Orange, I can't see anything like goblins. I don't have the magic eyes like you, teacher."

Orange: "You don't have to worry about that, I will find something to replace your eyes."

On the other side, my hut.

Me: "Shichen, you know the goblin."

Toshichen: "If I remember correctly, the goblin is a fantasy species, but it does not possess entities just because of fantasy like a demon. Instead, after being imagined, it has the existence of a self-sustainable entity."

Me: "Then do you think it's like dragons, fairies, and the ancient hand-feather tribes, the fantasy species of the Winged Man tribe, and the demons, that we have seen before?"

Toshichen: "What you insist on saying... is that the level of fantasy is different..."

Me: "It can be said that... My guess is that because the first type of fantasy species have all the functions of real creatures, they can continue to survive without fantasy, while the second type of fantasy species have a lack of biological functions. Their existence consumes magic every moment, so once they leave the fantasy, they no longer exist."

Shichen: "The statement of the function of a creature itself is very broad. What kind of functions do it need to be considered a creature?"

Me: "Indeed, no very standard definition has been drawn so far... According to the common saying, organisms refer to living organisms that can survive independently, but what is interesting is that this definition itself has its own grammatical diseases... However, organisms generally have some common functions in terms of function. For example, organisms must have the ability to metabolic, that is, they can obtain new supplies from the outside world on their own, and at the same time they must be able to eliminate waste from the body; they can respond to external stimuli to respond to external stimuli

; able to grow, reproduce and develop; have a certain adaptability to the environment, and can make a certain degree of self-change according to the environment, or rewrite the surrounding environment to a certain extent... The fantasy species of demons are not complete creatures, and they must rely on fantasy to survive. This is probably the reason why the demons only have the ability to obtain supplies, but they cannot discharge waste generated through activities. The demons do not have the ability to make self-change according to the environment, which depends entirely on people's imagination. I think this should be the case..."

Toshichen: "It's a pity that before we get the proof, these can only be said to be hypotheses..."

Me: "It's indeed a hypothesis. By the way, I'm going to visit Liyuan in the near future..."

Shimon: "Is it not going to get into any trouble again, Miss..."

Me: "That's it. The first point is because I'm really curious; the second point is because the war you know also has to take out enough chips if you want to save anything; the third point is that for what is known, no matter how dangerous it is, the risk is lower than that of the unknown."

Toshichen: "But Miss, you are turning the known into the unknown every time..."

Me: "This is the unfathomable nature of the world compared to mortals. When a person is in the world and observes the world, he will inevitably change the world. Therefore, if knowledge does not increase, then from the perspective of the proportion of events encountered, the proportion of known things must be less and less. The key question is how we use our knowledge to achieve our goals."

Toshichen: "So this time, it's like those mortal law enforcement officers who wait until the matter is over before they appear?"

Me: "That's of course, it's the easiest way to achieve the goal, right?"
Chapter completed!