Nara, Japan.

Tiger Breeze and Shadow Fly have arrived in this famous city.

The East Asian Mathematics Exchange Seminar was held here, and Tiger Yinfeng and Shadow Fei entered Japan on the same day, but they should not forget the serious purpose of this trip to Japan.

The East Asian Mathematics Exchange Seminar is planned to last for about two weeks, and the content of the conference is divided into three parts, the first is the exchange of mathematics theory among East Asian countries, mainly from China, South Korea, North Korea, Japan, and some Southeast Asian countries to give theoretical lectures and organize small exchange seminars.

The seminar covers a wide range of topics, including traditional mountain medicine and fortune divination, as well as Japanese ninjutsu, Thai witchcraft, Chinese kung fu and so on.

It can be said that although the East Asian Mathematics Exchange Seminar is nominally a brand of mathematics exchange, in essence, it has almost all kinds of large-scale mathematics and martial arts projects in East Asian countries, and it can be described as a grand event of East Asian folk mathematics and kung fu exchanges, exchanges and discussions.

Such a grand event is a bit unusual in today's era, because with the development of science and technology, things like this kind of folk art are increasingly suppressed by traditional society, and gradually lose a lot of market.

Many young people are already very unfamiliar with this kind of mathematical research, and occasionally there are many people who are skeptical, and even many people scoff at it.

Even in the big country of mathematics, China has a history of 5,000 years of civilization, and there are very few people who are interested in traditional Chinese medicine, and there are very few people who are willing to treat diseases and injuries through the means of traditional Chinese medicine, and the situation of other surgical content is even more conceivable.

However, in South Korea, Japan, these more modern East Asian countries, the number of magic has maintained a strong momentum of development, and the governments of these countries do not adopt a tilted suppression policy on folk mathematics like Huaxia, therefore, in the eyes of Japan and South Koreans, the level of modern Chinese mathematics has lagged behind that of South Korea and Japan.

This is also one of the original intentions of Japan's high-profile 4th East Asian Mathematics Exchange Symposium, which they want to use as a means to emphasize the leading and supremacious position of the Japanese in mathematics research.

The second special part of the East Asian Mathematics Exchange Seminar is the five-day Mathematics Fair, which includes three days of free trading and two days of supernatural auctions.

The last five days of the meeting arrangement is the most eye-catching, is the East Asian countries of the friendship of the masters, in fact, this is a better to say, to put it bluntly, is the ring competition, is the real knife and real gun challenge, although there is no name, there is no hard rule on how the outcome of the friendship will be won or lost, but the discerning people can see at a glance that after this East Asian magic exchange seminar, will basically lay the post-war East Asian countries of the mathematical status.

Although this is a nominal friendship competition, the people who can participate in this exchange meeting are the elites of the mathematics of various countries, and it can be said that they are the top talents in some aspects, representing the highest level of mathematics in their countries.

Delegates from all over the world are secretly trying to make a splash at the East Asian Mathematics Exchange Symposium, which not only represents a matter of honor, but also may involve huge economic and political interests.

Hu Yinfeng got in touch with the head of the Huaxia delegation at the first time, Mr. Zha Tianxiang, and the two communicated on the phone for almost an hour, and finally finalized the plan.

Putting down the phone, Hu Yinfeng lay on the sofa and closed his eyes to recuperate.

After a while, he called Ying Fei, who lived in another single room in the hotel, and told him that he didn't need to accompany him, and the old man Zha Tianxiang asked Ying Fei to quickly go to the hotel where the Huaxia delegation was staying to report and return to the team, while Hu Yinfeng himself stayed in another hotel.

"You're not going back?" Shadow Fei was a little surprised by Tiger Leadwind's request to let him return to the team alone.

"Well, I still have some things, it's not convenient to return to the delegation's residence for the time being, I won't participate in the preliminary theoretical research, you are also a representative of the delegation, if neither of us is in the delegation, I'm afraid it will cause some unnecessary suspicion, you go over for the time being, I don't have anything to do here." Hu Yinfeng explained.

"So, is it convenient for you to be alone? You don't know Japanese. "Ying Fei is still a little worried.

Hu Yinfeng smiled and said: "It's okay, I don't go out anyway, just stay in the hotel, there is also food in the hotel, I don't go out, it doesn't matter if I understand Japanese or not, anyway, it's just a few days, and when the second item of the special meeting is exchanged and auctioned, I will rush over immediately, it doesn't matter." ”

Ying Fei frowned, and finally didn't say anything, just nodded, and finally said, "Okay, I'll go and pack up my things, you alone must pay attention to safety." ”

Hu Yinfeng smiled and said that he was fine.

After Ying Fei left, Hu Yinfeng closed the door, walked to the window sill, and watched Ying Fei get into a taxi and drive away after going downstairs, and then gently lowered the curtains.

Half an hour later, Hu Yinfeng appeared in another small hotel and moved in under a different name.

After arranging his place to stay, Hu Yingfeng was moved and released four of the eight rodents, while the remaining four were placed in several corners of the hotel where he was staying, monitoring for any abnormalities here.

He himself closed the door of his room, turned off all electrical appliances, closed the curtains, then opened the Heavenly Eye, released the Soul Splitting Whip, and searched his residence carefully, and only then did he relax after making sure that he found nothing unusual.

Hu Yinfeng sat on the sofa, swiped his right hand, only to see a sudden fluctuation in the void space, a scratch appeared out of thin air, Hu Yinfeng reached in and took out a small bottle.

This is the jade bottle that holds the bone extraction and marrow scatter.

"Be careful, this thing is too strong, it is more irritating at first, you have not been trained in this area before, it may be more painful. The Seven White Raccoon Raccoon taught earnestly in the mind of the tiger.

It was precisely by following the advice of the Seven White Raccoon that Hu Yinfeng decided to refine these treasures in his hand as soon as possible.

Whether it is Bone Extraction Powder or 10,000-year-old chalcedony essence, these things must be used for their own purposes in order to truly exert the magical effect of heaven and earth treasures, otherwise they are just a few more precious materials.

Speaking of which, Hu Yinfeng's current protection is not not strong, but he understands that he has actually used too much external help, whether it is a magical Buddha robe or a fantasy fugue technique, this is a tricky method, in fact, it is not Hu Yinfeng's real strong body.

And this time, by chance, the 10,000-year-old chalcedony essence and the Bone Extraction Pulp Powder obtained from the Iga faction are real treasures, and Hu Yinfeng decided to use these things to thoroughly temper his body first.

In this world, only one's own strength is the last word, and it is not a foolproof strategy to count on any other backer. Although Hu Yinfeng is not deeply involved in the world, he also understands this truth very well.

According to the request of the Seven White Raccoons, Hu Yinfeng filled the hotel bath with hot water, then opened the jade bottle, went deep into the jade bottle with the Soul Splitting Whip, and took out a purple liquid about the size of one or two sesame seeds, and then carefully placed the jade bottle, and returned everything to nothingness.

Looking at the magical liquid suspended in front of him, Hu Yinfeng showed a trace of disbelief on his face.

"Hmph, do you think I'm a little too cautious?" the Seven White Raccoon smiled coldly.

Hu Yinfeng's heart moved, but he was a little embarrassed, he did have such a little idea in his heart.

"Don't underestimate this little bit of bone extraction, if it weren't for your luck meditating and practicing all the time, I might only ask you to take half of the amount you have, and you'll know after a while, I hope you don't scream when you come back.

Tsk, I don't know where these people found this recipe, and it's hard for them to get so many magical herbal essences. Okay, you put this little bit in the hot tub and try to lie down slowly. ”

Hu Yinfeng didn't dare to use his hands, but used the divine mind of the Soul Splitting Whip to manipulate this little purple droplet, which was almost imperceptible without looking closely, and slowly put it into the hot pool.

A faint mist suddenly rose on the surface of the water, followed by a faint spicy aroma in the air. Fortunately, Hu Yinfeng now feels very good, otherwise it would be really difficult to smell this slightest strangeness.

Hu Yinfeng took off his clothes and carefully put one foot into the pool.

At the moment when the soles of his feet just touched the bath water that seemed to be clear water, a burning sensation suddenly came from his skin, burning the tiger to the point that he bared his teeth.

It's a hot feeling, it doesn't feel like you're taking a bath, it's like you're baking a fire, not a fire, to be exact, it's baking on the fire.

Hu Yinfeng gritted his teeth, endured the severe pain, and it took almost an hour to slowly adapt and soak his entire body in this special pool of bath water.

Countless fire dragons stabbed from countless directions, easily penetrating the skin, directly into the **, deep into the blood, and finally directly into the bone marrow.

The kind of pain like a thousand knives made Hu Yinfeng sweat profusely, and the beads of sweat on his head kept rolling, and several times, Hu Yinfeng felt that he couldn't stand it anymore, and wanted to jump out of the pool and escape.

But the warning in the mind of the Seven White Raccoon has been haunting in his heart: "If you can't even stand this little suffering, your future achievements are estimated to be almost over, and even whether you can return safely from the Wa Kingdom is a question." ”

Thinking of his mission, thinking of his origin, and especially thinking of the relatives and friends behind him who looked up and counted on him, Hu Yingfeng gritted his teeth and finally survived the initial period of intense stimulation.

After about two or three hours, the ** of the whole body has begun to numb, and the burning pain seems to be reducing, but the stiff numbness gradually increases, and in the end, Hu Yinfeng can't even lift his eyelids, and his brain begins to become dizzy, and finally his head is crooked and he passes out