Su Yuan took the knife in front of him, his eyes lit up, and he picked it up gently, the cold light poured down like flowing water, and the beautiful arc of the crescent moon was pleasing to the eye. In his eyes, the yellow light was rich, and it was actually on par with the Seven Star Sword!

Even the sword body is wrapped with a trace of blood red, which is even more weird.

"It's ......"

"Sesshomaru!"

Emi Yanagi's whole body was shocked, and she said even more respectfully: "The master really has superb eyesight, yes, it is our Yanagi family heirloom sword, Killing Pill!"

"Not bad!" Su Yuan nodded, the casting scene flashed in his mind, and the second time he brushed up on the experience of the katana craft, and his level was even higher.

The katana is different from the other three famous blade systems in the world, both in terms of the acquisition of materials, as well as its forging and heat treatment technology, it is a very unique and distinctive weapon.

Since the Han Dynasty, various technologies and goods have continued to flow into the island country, especially the advanced steelmaking technology in the Longquan area, which began to flow into the island country around 6 AD. After more than 1,000 years of local development, and then accompanied by the Sui and Tang Dynasty sword heat treatment methods brought back by the Sui and Tang envoys, the steelmaking method and knife-making skills unique to the manufacture of katana were finally formed.

"Tatara steelmaking, real sand in the western part of the continent is the material, and the most rare thing is the master pill forging technology!"

Su Yuan couldn't put down the killing pill, for the island country kendo, when holding the sword, there can be no gaps in the palm, the ring finger and little finger hold the hilt of the sword, the thumb and index finger are lightly pinched, and the middle finger is not loose on the handle.

Once the knife is deployed, the only thought is how to take down the enemy. When slashing at the opponent, the sword is held unchanged, and the hand cannot shake, nor can there be the slightest hesitation.

A knife stream!

Slash to the wind!

This is the real knife that kills!

Su Yuan gently put down the killing pill and couldn't help but sigh: "Sure enough, it's the Soil Burning Blade!"

"...... you" Emi Yanagi's whole body was shocked, her eyes stared at Su Yuan, and she said in a trembling voice: "Do you really understand the earth-covered burning blade?"

"Hmph, what doesn't my master understand?" Xu Kui saw that the little lady actually dared to question Su Yuan, and said dissatisfiedly: "What is so difficult to cover the soil, I will know three or four things." The master's most powerful technique is the oil quenching method, which is the most awesome sword raising technique!"

"You ......"

Yanagi Emi was stunned for a while, what kind of rhythm is this? The long-lost secret technique of the Yanagi family made him come all the way to Longquan for a long time......

Su Yuan smiled and said nothing, the heat is almost the same, it depends on how the other party chooses?

The so-called earth-covered blade is to cover the blade with soil mixed with various secret recipes, and then heat it to a specific temperature to allow the sword to fully absorb the minerals in it. To put it bluntly, it's like we eat trace elements.

Carbon can increase strength, silicon can improve the elastic limit, yield point and tensile strength of steel, manganese can improve the hardenability of steel and improve the hot processing properties of steel......

It is said that there are three major difficulties in sword casting, one is forging, the second is quenching, and the third is polishing.

Quenching is called water reduction in the island country, which is generally clear water, and the master uses experience to configure various secret recipes, and uses yellow clay to cover the soil and burn the blade to improve strength and toughness.

Finally, there is polishing, one is technique, but more importantly patience and time. The killing pill is at least ground as a whole for up to three years, how can it not be sharp?

Emi Yanagi suddenly fell to her knees, threw herself to the ground, and said respectfully: "Please take me as an apprentice and follow you to learn the true art of sword forging!"

"Congratulations to the host for completing the quest and getting the opportunity to draw a new master......"

"Target Selection ......"

Target ......

"Spring and autumn, cadre!"

A domineering man appeared in front of Su Yuan's eyes, and his heart was shocked, he was actually a cadre!

"Congratulations on obtaining the Five Elements Sword Casting Technique, please explore the function by yourself......"

"Mission: How can the master speak without evidence? Limit three months to build a golden light sword by himself, and use the record of cutting off ten yellow light swords to prove his strength!"

A series of raised sounds caught Su Yuan off guard, and he finally eased up, stood up suddenly, and exclaimed, "What?"

"I ......" Emi Yanagi was frightened, and she didn't dare to look up at Su Yuan, so she quickly explained: "I know that my level is not enough, please let Emi be by your side as a follower, one day I will impress the master with sincerity, please agree to this request!"

After saying that, he kowtowed again, and the perfect curve knelt on the ground, unable to live or die. Jin Sanye didn't expect this to be the case, so he hurriedly played a round and said, "Master Su, look ......"

Su Yuan took a deep breath, now is not the time to think about the system task, sat down slowly, looked at Emi Yanagi, who couldn't kneel for a long time, and said in a deep voice: "Can you endure hardship?"

"Master rest assured, Emi can endure hardship!"

Emi Yanagi was overjoyed, and quickly raised her head, her eyes firm, and said: "As long as you can learn the true sword casting technique, you will never give up!"

Su Yuan looked at the other party's eyes quietly, clear and sincere, and nodded: "Since this is the case, you will follow me for the time being, how much you can learn, it is all up to your heart and hard work, get up!"

"Thank you, Master!"

Emi Yanagi kowtowed three times and quickly stood up, not daring to call the master now, but secretly made up her mind to serve the left and right well, and one day she could become a real disciple.

"This ......"

The other people were confused, was this making a movie?

Just now it was a hundred billion dollar lady,

Instantly become an island maid?

Kneel on the ground and sing conquest,

And especially willingly!

Su Yuan didn't have too many thoughts in his heart, he had read a book that introduced the national character of little devils before, they had servility in their bones, they naturally worshiped the strong, and it was normal for them to surrender.

For example, thousands of years ago, he was subordinated to Tang Khan, paid tribute every year, and became a minister every year. In recent decades, he has been the little brother of the United States, bowing his head to his ears, saddle before and after the horse.

Once you have the opportunity to overtake the other party, you will immediately become a hungry wolf, which can be described as a representative of the real wolf's ambition!