Brother Wuji also has a lot of ancient medicine books, after Xia Xue studied, found a lot of Chinese herbal medicines that can help heal trauma, stop bleeding and reduce inflammation, and cure some diseases, and found that they are indeed very effective in the treatment process of nearby residents, which makes Xia Xue very happy, because in the coming troubled times, how many lives can be saved by these cheap Chinese herbs, which also makes Xia Xue sigh the magic of Chinese medicine. Although in the future, more than 2,000 years later, science and technology have been highly developed, and people have basically stopped using these simple Chinese herbal medicines in the production of various high-tech drugs, but the magic of Chinese medicine is still amazing.

Xia Xue found that the sword given to him by the two elder brothers was not suitable for immediate combat, and the power of hand-to-hand combat was not good, the length was too short, only 70 cm, and the strength and toughness were not good, and it was easy to break when encountering a strong impact, which was caused by the relatively backward steelmaking and forging technology in this era. I once experimented with my engineer brother to make many novel things, and I remember that I had studied Japanese samurai swords, Turkic scimitars, Damascus steel knives, etc., and had a certain understanding of these world-famous knives. I feel that I should use my knowledge and combine the resources at present to create a good sword that is better than the current sword.

"If you want to do a good job, you must first sharpen your tools", so after mastering martial arts such as horseback riding and archery for a few months, Xia Xue likes to run to the blacksmith shop in her free time to discuss her proposed knife casting plan with the masters. The master of the blacksmith shop also likes this beautiful and cute little fairy, and will fully cooperate as long as he is free. "Little Fairy" is a nickname given to Xia Xue by the surrounding villagers, because Xia Xue is unusually beautiful, and her age looks like she is only thirteen or fourteen years old; Second, the big Buddha of the Nanshan Big Buddha Temple said that the eldest grandson Xue was the nine-day fairy; Three times he killed the fierce monster Tiger with his bare hands. Who would doubt that Xia Xue was a little fairy now? That's why everyone gave this mysterious girl such a beautiful nickname.

Xia Xue combined the current technology and resources, plus some of the knowledge of later generations, mixed with an appropriate amount of quartz powder, charcoal powder, ferrochrome alloy, etc. in the iron sand, absorbed the technology of 100 steelmaking and local quenching, and then added the technology of covering the soil burning blade and cladding steel clamping, after more than a month of experiments, finally created a blade length of 1.2 meters, the blade is slightly curved, extremely sharp, with high strength, corrosion resistance, wear resistance, high temperature resistance, oxidation resistance, toughness and excellent special steel knife.

Xia Xue named this treasure knife that embodies her own hard work: "Tang Knife". And carved a small "snow" at the end of the handle as a souvenir.

The Tang knife she created has a longer handle than an ordinary knife, and she can hold the knife with one hand or with both hands. The handle is slightly curved towards the blade, so that the curved handle is easier for the rider to control and not easy to get out of your hands. With the tip of the knife and the blood groove, so that can complete the cutting, chopping, slashing and other actions can also be stabbed, poked and other functions, often stab, poke more can make the enemy quickly lose combat effectiveness, the role of the blood groove is not to bleed, the main role is that if the knife body does not have a blood groove after the knife pierces the human body due to the violent contraction of the muscles, it becomes very difficult to draw the knife, but after adding the blood groove, a gap can be produced between the muscle and the knife body, so that the air enters the muscle, and it is easy to draw the knife for the next tactical action, which is the same as the blood groove on the bayonet. The blade has a curve, which is conducive to chopping and exerting force in motion, which can share the resistance and prevent breaking. In order to have stronger fracture resistance, the width of the blade is slightly wider than that of Japanese samurai swords, and the weight is slightly heavier, Japanese samurai swords generally weigh less than 1.2 kg, and the weight of Tang knives made by Xia Xue is controlled within 1.4 kg. Ordinary men can also dance easily.

Xia Xue let the Tang sword she made for her two elder brothers, Eldest Sun Wuji and Gao Cheng, to test, and almost beat their swords. The two elder brothers were pleasantly surprised, and immediately asked Xia Xue to help each of them create a Tang knife, holding a treasure knife, the three of them were very happy, and they often studied knife skills together when they had nothing to do.

The Ouyang brothers and sisters are also good martial artists, although they are servants, but the Gao family treats them like relatives, and in order to enhance their ability to take care of the family and the hospital, they often teach them martial arts in their free time.

Ouyang Yong was born with divine power, and he likes to make an iron rod weighing more than 60 catties, tiger and tiger, and extremely powerful, which is something that ordinary people can't dance, that is, ordinary people can't dance for a day, and they can't bear it, but Ouyang Yong is as if he has taken a wooden stick, and he is at ease. Xia Xue was also amazed by her divine power when she saw it. However, Ouyang Yong can't shoot the crosshairs, he can pull the strongest bow, but unfortunately he can't shoot accurately. In particular, the riding and archery skills are even more bad, and the first thing to pass is to sit firmly on the horse. It is not very difficult to run with the reins in your hands and stirrups between your legs. However, it is very difficult to communicate with the horse with both hands at the same time, and it is very difficult to communicate with the horse on the knees and heels alone. So every time the bow was drawn, the mount would no longer listen to the command. Either ran to the opposite side of the target, or threw Ouyang Yong off the horse. In short, against a fixed target, it is difficult for him to catch an arrow in a hundred shots. Not to mention, like Xia Xue, it is easy to send it, and every shot will be hit. Even after the bow and arrow are off the string, they are missing, and they cannot be found if they want to be recovered.

Seeing that he was not the material for archery, Ouyang Yong no longer practiced archery, and concentrated on practicing iron rod fighting. Ouyang Yong's iron rod is about 1.8 meters long, and due to the limitations of casting technology, it is too long and easy to break. Xia Xue applied her knowledge to recast a new iron rod 2.5 meters long for Ouyang Yong, which was longer than the original, and had higher toughness, which was difficult to break, and because of the use of alloy, the weight was similar to the original old iron rod, which was more resistant to corrosion and rust. An inch long and an inch strong. Dancing the new iron rod cast by Xia Xue, it was more powerful than before, and Ouyang Yongle's mouth couldn't close. According to his characteristics, Xia Xue used Tang knife technology to create a one-handed short knife for him, with a combination of long and short to make up for the lack of long weapons in hand-to-hand combat. Ouyang Yong was so worshipful of this beautiful and intelligent fairy sister that he threw himself to the ground.

Ouyang Qian is good at making swords, light and agile, like a dragon, and archery is also relatively accurate, but because the strength is not as good as Xia Xue, the farthest lethality of the strong bow used is within 100 meters, and Xia Xue is within 150 meters.

In order to make up for Ouyang Qian's height and strength disadvantage, Xia Xue thought about the Japanese who invaded the coastal residents during the Ming Dynasty in later generations, holding two-handed samurai long knives, and often killing hundreds of Ming troops by more than a dozen people and fleeing, it can be seen that the katana's individual fighting ability is very strong, because the blade is longer than the sword of the Ming army, and it can be held with both hands to increase the slashing power, which greatly makes up for the shortcomings of the Japanese robbers who are short in stature and lack of one-handed strength.

Therefore, in view of Ouyang Qian's characteristics, Xia Xue specially designed and created a special Tang knife for her that is closer to a samurai long knife, with a handle length of 30 cm, a blade length of 125 cm, and a total length of 155 cm. This can make up for Ouyang Qian's lack of height and strength.

Ouyang Qian's height is only 162 centimeters, and she can only carry this samurai long knife on her back. The ancient sword she often used straddled her waist diagonally, so that the combination of two long and short weapons could greatly increase Ouyang Qian's attack ability. When Ouyang Qian used the samurai long knife with both hands to slash and assassinate training, she found that the power was far superior to her own ancient sword, and she was extremely happy, and she was really grateful and admired Xia Xue.

After seeing the extraordinary talent of "Fairy Sister", the Ouyang brothers and sisters have become the first batch of most loyal "fans" after Xia Xue came to this world.