I am a freeloader in the anime world

"Okay, here we are."

Just as Su Yang, Sakuta Azusagawa and Mai Sakurajima were talking, Su Yang came to a square building similar to a public telephone booth, stopped and suddenly said.

"?"

After hearing Su Yang's words, a big question mark popped up in the heads of Sakuta Azusagawa and Mai Sakurajima.

"You call this a restaurant?" Sakurajima Mai looked at the hotel Su Yang was talking about with some surprise.

It’s no wonder that Sakurajima Mai said that, it’s just that the building of this so-called hotel is not very big, it’s really only as big as a public telephone booth.

"You'll know once you walk in." Su Yang shrugged and continued.

Hearing this, Sakuta Azusagawa was the first to open the door and walked in. However, just a few seconds later, he walked out again and looked at the hotel building again.

“?” Sakurajima Mai looked at Sakuta Azusagawa's actions, somewhat confused.

"Sakurajima-senpai, you should go in and take a look yourself." Azusagawa Sakuta scratched his head, as if he felt he could not explain himself.

"Okay." Sakurajima Mai responded.

However, after entering the Heian Hotel, Sakurajima Mai, just like Azusagawa Sakuta just did, quickly came out and walked around the building outside the Heian Hotel again and again.

"Oh." Su Yang sighed, and without paying any attention to the two people's behavior, he walked in on his own.

However, the next moment, he was thrown out of Ping An Hotel within a second. Then, a man in Confucian clothes came out holding a sign and hung it at the door.

'Dogs and thieves are not welcome'

"..."

"I'm here to consume!" In the distance, Su Yang, who had just gotten up, said to the man in Confucian robes.

"..."

After hearing Su Yang's words, the man in Confucian clothes just looked at Su Yang with a disgusted expression, his eyes full of distrust towards Su Yang.

“They pay the bill.”

As if knowing what the man in Confucian robes was thinking, Su Yang pointed at Sakuta Azusagawa and Mai Sakurajima and said.

"..."

After hearing Su Yang's words, everyone present fell silent.

"Okay, come in." After a long while, the man in Confucian clothing said silently, "The hotel costs 10 million Sakura yen a day, and the meal costs 5 million yen a day. Please come in."

"..."

Hearing the words of the man in Confucian robes, Sakurajima Mai and Azusagawa Sakuta, who were about to enter the Heian Hotel, suddenly stopped and moved away from the man in Confucian robes as if they had seen some horrible monster.

............

Finally, several people entered the Ping An Hotel. Of course, they still had to pay the money, but it was put on Su Yang's head. Su Yang had no objection to this. After all, the more debts one has, the better. If he was asked to pay, he would never be able to get out of debt in this life.

"So, you want to ask about puberty syndrome?"

In the kitchen of Ping An Hotel, the man in Confucian clothes asked Su Yang.

"About this, you should go back to the Time Travel Bureau to ask. What I know is actually similar to what you know. However, you do need to go back to the Time Travel Bureau. The Time Travel Bureau has detected that this world is merging with other worlds."

"Ok?"

"I don't know the details. You have to ask yourself. Anyway, I'm just the manager of the Ping An Hotel. Besides, the Ping An Hotel on Blue Star is going to be closed."

"Why?"

"Your talent." said the man in Confucian robes.

"..."

"By the way, do you know how to solve the problem with Sakurajima Mai?"

"Do you know Schrödinger's cat and Young's double-slit interference experiment?" asked the man in Confucian clothes.

"How does it get to quantum mechanics?" Su Yang was obviously a little confused.

"In fact, that girl is very similar to the thought experiment of 'Schrödinger's cat' in quantum mechanics. Only by 'observation' can we determine the fact that 'Mai Sakurajima exists'. Because other people did not observe Mai Sakurajima, they could not detect her existence."

"In this respect, it is very similar to the situation in Young's double-slit interference experiment. If you don't observe which slit the photon passes through, interference fringes will appear on the screen behind it. When you observe the path taken by the photon, the interference fringes on the screen disappear, which shows that observation can affect the result."

"She is now in this state of 'observation loss', which will even erase all memories of her existence in this world, that is, she will disappear forever and fall into the other world, never to return."

The man in Confucian robes said a lot.

"In other words, just let someone observe her?" Su Yang asked.

"Well, to put it simply, that's it, but it's very simple for you." The man in Confucian clothing said, "Take the time you fell into the inner world and were hunted down. It was because your existence was constantly being observed that you were able to come out of the inner world."

"So, who is observing me?" Su Yang asked.

"A lot." The man in Confucian robes said only one word.

"I hate the Riddler the most." Su Yang was speechless, "Then how do we solve the problem of Sakurajima Mai?"

"It's simple, just confess your feelings to her." The man in Confucian robes said disapprovingly.

"???"

"This is the simplest method. After all, it's not that no one has observed her. It's just that the people who can observe her now are not ordinary people, such as you and me. But we are all outsiders of this world. Theoretically, we are not counted. But because of the Crossing Bureau, we are barely recognized by this world and can observe Sakurajima Mai."

"What about Azusagawa Sakuta?"

"He is a psychic, connected to the other world, so he can observe Sakurajima Mai. Do you believe it or not, in a year at most, even he won't be able to observe Sakurajima Mai?"

"Why?" Su Yang suddenly became curious.

"How should I put it? This has to do with karma. She and Azusagawa Sakuta have karma, but this karma will disappear from the moment they know each other, and will disappear completely after a year."

"What cause and effect?"

"As the Buddha said, it is indescribable. However, for now, the cause and effect between Sakurajima Mai and you is greater."

"???"

“Anything related to time travelers, whether legally or illegally, will lead to huge consequences,” said the man in Confucian robes.

"Let's not consider the issue of confession. How can we solve the problem of Sakurajima Mai?" Su Yang didn't discuss the theory of cause and effect with the man in Confucian clothes.

"It's simple. Take her around the world, and then use your talent to let all plants and animals know about her. After all, in reality, the eight billion humans are no match for the total number of plants and animals on this planet. As long as there are enough living beings who can observe her, there is nothing that cannot be solved."

"It's really troublesome." Su Yang was helpless.

"Either you confess your love to her, and the two of you establish a strong cause and effect to interfere with her being unobservable. After all, marriage is one of the most powerful causes and effects. Or, you travel around the world and let all the animals and plants in the world know her, and do your best to catch the animals and plants that can observe her. But if you do that, I don't believe she won't have any special feelings for you. And then, it's the cause and effect of marriage, so confessing your love is the most appropriate."

The man in Confucian robes shook the big spoon in his hand and said.

"..."