"But if you leave this other world alone, it will still have other adverse effects after a long time?"

"Yes, the long-term existence of the other world will erode reality. When the erosion reaches a certain level, it will cause some places in the real world to also produce 'otherworldly' changes. And where the real world has become otherworldly, the alien beast has a way to move as freely as in the otherworld. ”

The long-term existence of the Otherworld will erode reality...... Levi is not a magician who specializes in spatial magic, although he has more elusive spatial abilities than most magicians who specialize in spatial magic. But his ability comes from no clue, and even those low-level spatial mobility abilities in the school city know more complex and profound principles than him. Not to mention the old mages who changed their black robes into long robes to fill the scientists in the laboratory.

However, even if he doesn't have a deep understanding of his abilities, that doesn't mean that Levi doesn't know anything about using those abilities instinctively.

No matter how much you don't research something, but when you touch it every day, use it every day. Over the years, we can at least sum up some of the truths. The so-called empiricism seems to be despised by many modern people who pay attention to rigorous science, but although it does have an unscientific and unrigorous aspect, it is undeniable that the reason why human beings do not live long enough and the experience that a person can accumulate is not rich enough.

If a person can live for hundreds of years casually like Levi or even Penglai Mountain Kaguya. Then the experience he has must be much more reliable than the so-called 'collective wisdom' that has been passed down from generation to generation, but there must be omissions and misunderstandings.

Of course, this is not to say that people like Levy, who never put effort into using their brains, have accumulated better experience than those who concentrate on research just because of their long life and the troubles they encounter. It's just that after all, he has used this ability as naturally as an ordinary person's gesture for many years, and his understanding of the existence of 'space' is at least much stronger than that of researchers at the current level of science and technology on the earth.

"Yes, according to you, such an otherworld is not really a otherworld. Rather, it is the powerful beasts that have 'carved out' on the basis of the real world with their own power. Such an otherworld has existed for a long time, and it will definitely have a certain impact on reality. If the culprit beast is strong enough and brews long enough, it will also have more serious consequences, such as the 'earthquake' ten years ago. ”

When Lévi spoke of the 'earthquake ten years ago,' he noticed the pupils of the girl in front of him shrink suddenly. Although Hiiragi Asuka may have been trained rigorously and knows how to control her emotions and body movements. However, these subtle physiological reactions cannot be controlled by ordinary people just by subjective consciousness.

When talking about the girl's weapon earlier, the vague speculation was confirmed again. The 'earthquake' that Levy refers to is a powerful earthquake that struck the outskirts of the capital of the island nation of Toei ten years ago.

It was officially reported to be a 7.5 magnitude earthquake. It is said that the earthquake was not only of high intensity, but also lasted much longer than ordinary earthquakes. Then, after that, the aftershocks were accompanied by fires, underground toxic gas leaks, tsunamis, tornadoes, thunderstorms, and even a cold snap that affected the aftermath for a long time.

According to official reports, the series of disasters triggered by the earthquake eventually caused 22,000 deaths and more than 7,000 missing people.

Of course, these are all official 'tellable news' for the general public. In fact, even among the victims who experienced it at the time, few of them still have real memories of the time.

Levi casually glanced at Hiiragi's thighs. Although the temperature in this country is quite low this season, this girl inherits the talent of female students in Dongying Island country, even in the ice and snow, she still wears a light and fluttering short skirt, as if the white stockings on her legs are enough to keep out the cold.

Levy, who has also been a teacher for more than ten years, is naturally not attracted by the absolute field exposed in the middle of the skirts and stockings of other girls. He was looking at the sock ring Hiiragi Asuka's thigh just now.

There is a black leather case hanging from the leather sock ring, and you can see by looking at the shape and size that it should be convenient for putting things like mobile phones. Although Levi is not like some other teenagers who don't know girls, he knows that girls' clothes are often designed for aesthetic design, and there are no pockets that boys' clothes and pants always have. But it's also quite rare for a girl to put her phone in this way.

Considering Hiiragi's true identity and what she did just now, it is indeed understandable that it is not convenient for her to always carry a satchel and put daily necessities such as mobile phones in her bag like ordinary girls.

However, despite the absence of any signs or evidence, Levi suddenly wondered what special functions the holster Hiiragi put on her lap must be different from the usual mobile phones on the market.

Presumably, the ability to erase the memories of ordinary people must be there, right? Otherwise, how could the organization behind her send a girl out to perform a mission?

Hiiragi Asuka said at the beginning that ordinary people have the possibility of straying into the other world, and the main thing she does to eliminate these other worlds is to prevent people from straying into danger. After rescuing the ordinary people who strayed in, if there is no way to make them forget what they have seen and heard in the other world, what will become of society?

At least hundreds of thousands of witnesses to such a large-scale disaster could have forgotten the truth, even if it was certainly not the organization behind Hiiragi Asuka alone, in fact, Levy knew that Aozaki Orange, who was also in Tokyo at the time, had participated in the operation to revise the memories of witnesses afterwards. I'm afraid Hiiragi Asuka has a similar 'program' in her phone, if she wasn't a person who could solve the strange beast in front of her, but an ordinary teacher who had a few faces. Now Levi thinks that he must have sat down in the toilet in the highway rest area, waking up in a daze and not knowing why he suddenly fainted.

"Tokyo Disaster ......"

Hiiragi Asuka didn't know that Levi had discovered her secret, so she took a deep breath and said a term that Levi hadn't heard of either. Levi didn't think it was a slip of the tongue on the part of the girl.