Between the white mountains and black waters in the north, the mighty river of Longjiang flows endlessly from west to east from west to east from the small city in the northeast of the Great Yan Country - the edge of Kongjia Town outside the city of Tucheng, and turns south into the sea.

On the north and east banks of the river are continuous mountain ranges, which belong to the kingdom of Rus' and the kingdom of Xili.

Although this Confucian town is located on the border, and it is more than 100 miles away from Tucheng, because the north and east banks are huge mountain ranges, although the three kingdoms of the human race are often filthy, they cannot carry out large-scale decisive battles here, but they also end up relatively peaceful, only the border people and bandits of the other two countries infiltrate and rob on a very small scale, and they are also easy to be repelled by the townsmen in the town.

On weekdays, the border people across the river have some mountain goods, furs, salt and iron trade, and people come and go on weekdays, and they are not deserted.

Most of the people take the combination of body, mind, and spirit as the foundation of their lives, and they are generous and benevolent, have a peaceful state of mind, have no quarrel with the world on weekdays, are happy to help others, respect teachers and education, and are happy.

That afternoon, in a school in a private school in the town, a group of children were shaking their heads and following a teacher about forty years old to memorize the text: "Therefore, the heavens will descend on the people, and they must first suffer their minds, strain their muscles and bones, starve their bodies and skins, empty their bodies, and act chaotically, so they are motivated to endure and benefit what they can't ......."

Suddenly, I saw the teacher shaking his head as he walked to a five or six-year-old naughty boy in the back row, "Kong Rui, what are you doing?" but in a soft southern accent.

The naughty boy seemed to have sensed that Mr. was coming, and he hurriedly hid the iron plate toy in his hand under the table, holding the book and pretending to be very serious, "I didn't do anything, I was reading." ”

The gentleman said lightly: "Well, since we were reading just now, where have we read?" ”

Kong Rui's ears were red, and he stumbled and recited a few sentences: "Therefore, the heavens will descend on the people, and they must first suffer their minds, strain their muscles and bones, starve their bodies and skins, and empty their bodies, and do ......."

Seeing that Kong Rui really couldn't hold back the embarrassment, all the children took the opportunity to put down their books and laughed.

"Well...... Seeing that Mr. just glanced back, the school was immediately silent, and seeing that the rest of the children were honest, Mr. stretched out his hand, and took out the iron plate toy from under Kong Rui's desk.

The gentleman looked at the delicate toy in his hand and asked, "Playing with toys again?"

Hearing Mr. ask, the rest of the children all turned around and looked at the toys in Mr. Wang's hand with fiery eyes, and Mr. also felt the changes in the rest of the children, and saw that Kong Rui could not answer, so he said to Kong Rui: "You stay after school, and we will continue to study." He took the toy in his hand and went up to the podium to continue explaining the text.

When the children saw the toy, they didn't have the heart to continue listening to the lesson, and the afternoon class passed in such a mess.

When school time finally came, the children rushed out of the school and went home.

Kong Rui moved to Mr.'s chair one by one and called softly: "Sir,"

The gentleman took a sip of tea, then raised his head, looked at Kong Rui, who was standing in front of him with his head bowed, and took out the iron plate toy, although he was surprised by the ingenuity of the toy, he asked him: "It was stolen from home again, right? ”

Kong Rui had no choice but to stay there obediently, and after making up his homework, he left the school and went home with the iron plate.

Along the way, Kong Rui was thinking: "I just have to focus on two things and be distracted from studying, so that no one will talk about me." After making this determination, Kong Rui instead studied hard, but at the same time, he divided a trace of his mind to think about other things.

Three months have passed, Kong Rui has now practiced in the school for three months, this method of two uses is extremely tiring, Kong Rui often shows fatigue, fortunately, when he is at home, he often helps his father, who is a blacksmith, to do some physical work, his health is acceptable, and his learning has also improved, his parents think that his son is studying hard, and he usually treats Kong Rui better.

Kong's blacksmith family also has a few acres of thin fields outside the town, and during the harvest season, they naturally go to the fields to harvest rice with other villagers, and also have to guard against robbers who cross the river from the Rus Kingdom, and the atmosphere in the town suddenly became tense, and the young men were organized into a team to patrol day and night to guard against bandits.

And because the blacksmith Kong has to build weapons from time to time, and there is a lot of work for farm tools at home, he is busy every day, so he called Kong Rui to the blacksmith shop to help.

Fortunately, now is not school time, Kong Rui can take out the iron plate from his father's cabinet and ponder it carefully, while pulling the bellows to burn the fire, he is also practicing the method of single-mindedness and dual-use, while doing what his father ordered, but in his heart he is figuring out the method of advancing and retreating the slider on the iron plate.

Seeing that his son could also do his job, the blacksmith Kong didn't think much of him fiddling with the iron plate.

After more than ten days, the autumn grain into the warehouse, to the time of farming, the people in the streets and alleys are more, everyone chatting happily, but on the other hand, secretly feel strange in their hearts, according to the experience of previous years, the robbers who cross the river from the country of Naros have to come to rob every year, and the remote farmers in the town are often robbed, but this year is unusually peaceful, there is not even a news of bandits, is it that the robbers of the country of Naros have also abandoned evil and followed good?

There is a large mountainous area in the upper reaches of Kongjia Town, called Black Tiger Mountain, this mountainous area is infested with poisonous insects and beasts on weekdays, every ten years, in autumn, some strange things will happen in this Black Tiger Mountain, those poisonous insects and beasts will die inexplicably a large number, and those dead poisonous insects and beasts are all adults, after death, there is no flesh and blood, only dry fur and skeleton remain; if someone goes to the mountain, it will not be spared.

It's just that the area is too dangerous, and most of the time, the nearby villagers also roughly know the approximate time when the strange thing happened, so there are no casualties. And this year, such a strange thing just happened, everyone only knows that a lot of wild animals have died in the mountains, but no one dares to go into the mountains so quickly to collect the fur of these wild animals, and they all want to wait for a while.

But on this day, he saw a man in ordinary clothes fleeing from the mountains in a hurry, heading straight for the rocky beach by the river, and behind him, three men in black were chasing after him with swords in hand.

The man held a short knife dripping blood in his right hand, and jumped like the wind, but his left arm was seriously injured by something, and the flesh was blurred, but in the process of escaping, it was hastily bandaged, but there was still blood oozing out, and his face was pale because of excessive bleeding.

The three black-clothed men behind him were all dressed in the same attire, and the blades they carried were all the same: one long and one short, two narrow knives. But two of them did not use knives, but held a strange-looking artifact, and kept aiming at the man in front, from which from time to time one or two iron cones flew out, with a terrible sound of breaking the sky, and shot at the man in front of him like lightning; the man seemed to be very afraid of this hidden weapon, and had to desperately dodge, and the three men in black chased closer and closer.

The man dodged a few times, and the river blocked the way in front of him, and finally he was chased by the other party and surrounded him, but the two men seemed to have no iron cone to continue firing, so they drew their long knives and pressed forward step by step.

The man saw that the other party had no hidden weapon, so he sneered and said, "If you have any other skills, let's use them together!" After speaking, he held the knife in his right hand and flew up.

In fact, the three men in black were also quite jealous of that man, in the mountains, this man killed two of his companions with one to five, if it weren't for the fact that his secret weapon here was powerful and injured him, where would these three of them dare to go up again? But now that the opponent's left arm was hit hard and the blood was bleeding nonstop, he was definitely not the opponent of the three of them.

The man knew that his situation was not good, and he was determined to fight quickly, so he made a ruthless move and killed these three people.

But these three people are also extremely cunning, they just want to wait to consume the opponent, and they only defend at the moment, waiting for the opponent to bleed too much and fall by themselves.