Listening to Zhang Yuan's words, Ji Yu didn't know whether to sigh or be helpless.

Obviously, Zhang Yuan really belongs to the kind of loess buried to his neck at this time, and he doesn't have many years to live, even if he has great attachment to his own wishes, he is always unable to resist the erosion of time.

The door opened, and a blazing feeling immediately hit his face, and Ji Yu only felt that the temperature had risen a lot in an instant.

Looking inside the door, you can see a fiery red color, and a long staircase leads to the ground.

Zhang Yuan went down first, and Ji Yu immediately followed.

"This refining room has a history of tens of thousands of years, little brother, you may not know, this is the place where my ancestors discovered it 10,000 years ago, and my ancestors found that this place was very suitable for refining weapons, so they established this refining room here. ”

"Back then, the ancestor was the top refiner, and there was basically no one in the entire continent who didn't know his name, and it is said that the weapon of the legendary Dantian God of War was refined by the ancestor......" Walking to this refining room, Zhang Yuan's temperament has obviously changed, and from the vicissitudes of life before to the current words.

The refining room was like a stimulant to Zhang Yuan, and along the way, Ji Yu listened to Zhang Yuan tell a lot of past stories, all of which were about the past of some refining weapons.

When he heard the weapon of the Dantian God of War, his face really changed...... I became very surprised!

The last Dantian God of War appeared 10,000 years ago, the Dantian God of War is different from other gods of war, compared to other gods of war, the Dantian God of War is closer to the word "god", and even such a strong man, the weapons are actually refined by the ancestors of this Zhang Yuan, it is conceivable that Zhang Yuan probably also belongs to the refiner's family, but for some reason, he finally became the owner of this small ironware shop, and he is already close to ancient times......

I can't help but feel a little melancholy, 10,000 years of vicissitudes is enough to change many things, and it is not easy for this refining room to stay.

This staircase is really long, and Ji Yu and Zhang Yuan walked here for a quarter of an hour before finally seeing the bottom.

"Okay, little brother, this is the place where I refine weapons, what weapons you need to refine, just tell me first!" Zhang Yuan said.

Ji Yu took a lot of photos of this underground refining room.

The underground refining room is very large, covering an area of hundreds of square meters, and there are also a lot of refining materials here, many of which Ji Yu has never seen, and in the center of the refining room, there is a huge refining furnace in the middle, and the flames in Lu Zhong seem to not burn out, crackling and constantly making noisy sounds.

"Alas, there were originally a lot of materials here, all of which were collected by the ancestors, but today, the materials have also been forged and used up by our generations of people, and now they are basically gone. Coughing lightly twice, Zhang Yuan said.

Ji Yu looked around again, and without any hesitation, he flipped his hands, and two white fangs appeared on his hands.

"This is the tusks of a second-order mammoth, and if you use it as a material, you should be able to refine a good weapon, right?" Ji Yu asked cautiously.

After all, he is not a refiner, so he doesn't know these things at all, in fact, he is still a little suspicious, can these two things really be turned into a sword? No matter how you think about it, it seems a little difficult...... Fangs, swords ~ something that doesn't matter at all......

"Ahem...... Well, the material of these two fangs is indeed good, and only second-order mammoths can have, and if they are used as substrates, they are indeed the best choice for now!" Coughing a few times, Zhang Yuan took the two fangs in Ji Yu's hand, looked at Ji Yu with some surprise, and said.

"Substrate?" Ji Yu was stunned and didn't understand......

"Well, refining weapons requires substrates, which is equivalent to the beams of a house, the better the beams, the more stable the house, and the better the substrate, the stronger the weapons will be! Zhang Yuan said.

Ji Yu nodded as if he didn't understand, "Then you just said that for now, does it mean that it is still insufficient in the later stage?"

"Well, that's right. Zhang Yuan glanced at Ji Yu with some appreciation, he rarely saw such a careful young man, "The weapon refined from this substrate should be enough for you to use in the late stage of the war division, but after surpassing the battle division, I am afraid that you will have to re-strengthen it." ”

"Reinforcement?"

"That's right...... Just like the girder I just said, you can't move if the girder breaks, right? So you can find a way to reinforce, and the method of reinforcement is also very simple, find a more powerful substrate, preferably the fangs of this mammoth, so that there will be no conflict, then you only need to find another refiner to help you integrate the new substrate into the weapon, then that's it. ”

"If I had been there then...... You can come to me......" Speaking of this, Zhang Yuan sighed a little.

"I see...... I understand. Ji Yu nodded, although it was okay to say that if the weapon was not good, it would be okay to change it directly, but I don't know why...... He didn't want to change it.

Maybe it was because he heard that Zhang Yuan's ancestor had built a weapon for the last Dantian God of War, and now he has met the Zhang family's refiner again, and he is also a Dantian battle body, maybe this is the kind of unpredictable fate, if possible, he doesn't want to change it anymore, just ...... Reincarnation once in 10,000 years.

"I'll start working on the prototype now, and you'll wait a while. Zhang Yuan didn't seem to be afraid of Ji Yu stealing from school, so he directly pointed to a chair next to him and said to Ji Yu.

Ji Yu didn't shirk, he sat on the chair very directly, he was not far from Zhang Yuan, and he could see what Zhang Yuan was doing and how to do it.

However, at this moment, he does not have this scheming...... There seemed to be some unpredictable thoughts in my mind.

He put his hands on his cheeks and stared straight at Zhang Yuan with his eyes......

I saw that after Zhang Yuan took Ji Yu's materials, he walked to the side of a big stone with a slight tremble, and took out another fine iron.

Boom! Boom! Boom!

The sound of striking iron spread, and the first step in refining the tool was to purify the iron tool first.

Zhang Yuan fought very slowly, slowly integrating his battle qi into the iron, and was very careful, to clean up all the impurities in the iron.

A true refiner!

Ji Yu already had a heartfelt admiration for Zhang Yuan at this time, this was a kind of persistence of the refiner.

And at this moment, his inner struggle is getting worse and worse, and when he looks at Zhang Yuan, he is stunned......

A quarter of an hour, two quarters, three quarters, half an hour......

After a short time, an hour had passed, and the sound of striking iron continued, and the iron at this time did not know how much it was refined.

It is difficult to find a few impurities, Zhang Yuan is like an iron man, except for the sweat on his forehead falling like running water, he can't see a little tired feeling on his face, but is a little excited.

Another half hour passed.

At this time, Zhang Yuan picked up a piece of iron, and a pile of iron filings appeared around the iron, and the iron seemed to have a transparent feeling.

The first step, the purification of the iron, is completed......

Zhang Yuan was happy like a child, and then threw the iron into the furnace, about to use the battle qi to double the flames in the furnace.

And at this moment, Ji Yu seemed to have made some decision, and stopped Zhang Yuan with one hand: "Wait!"

Zhang Yuan's movements froze, his brows furrowed slightly, and his face showed a slightly unhappy expression, being interrupted while working, it was disrespectful to the people who worked, and it would also make people feel bad.

But Zhang Yuan understood that Ji Yu was not that kind of person, in order to prevent any accidents from happening, he still suppressed the anger of that moment, looked at Ji Yu, and said, "Little brother doesn't know what's going on?"

"Master Zhang, are you using soul fire to forge now?" Ji Yu suddenly asked.

"Well, that's right, this soul fire was left by the ancestors two thousand years ago, I don't know what the problem is?" Zhang Yuan wondered how Ji Yu could ask such a strange question.

Soul fire is a flame made by a monk above the Battle Spirit level, and as long as it cannot be extinguished, it can be maintained for thousands of years.

"No, no, there's no problem...... Ji Yu shook his head, and finally said, "Master Zhang, in fact, I have a better flame than soul fire here...... I don't know if you can ......."

"What! What are you talking about! a flame better than a soul fire?" At this time, Zhang Yuan didn't wait for Ji Yu's words to finish, and the whole person was surprised.

A flame better than soul fire...... It's either a holy fire or a divine fire......

He didn't doubt Ji Yu's words...... The whole body was still trembling a little, looked at Ji Yu, and asked tentatively, "Yes...... Is it a holy fire?"

As a refiner, he naturally understands the importance of the flame grade, the soul fire is already very powerful, if it is a holy fire, it is already a top refiner...... He couldn't believe it, could he ...... Can you still use the flame once in your lifetime...... You must know that in the past 10,000 years, only the ancestors have used the holy fire......

Thinking of this, he looked at Ji Yu with some hope......

"Eh, it's not the Holy Flame ......" Ji Yu was stunned, Zhang Yuan's reaction exceeded his imagination, and then he shook his head again.

Now Zhang Yuan is not happy...... He didn't think that Ji Yu would have a divine fire, so why did Ji Yu do this?

I saw Ji Yu chuckle, and a half-red and half-orange flame suddenly emerged from his palm......

Suddenly, the temperature of the entire refining room rose to an extreme, and the soul fire in the refining furnace began to tremble wildly like a mouse seeing a cat, as if it would be extinguished at any time.

At this moment, it was as if time had stopped......

Zhang Yuan looked at the flame in Ji Yu's hand in a daze, stunned, and then, the sluggishness turned into a surprise......

He trembled slightly, his whole body trembled, and he kept pointing in the direction of Ji Yu with his hand: "This...... This, this is God...... Divine fire!"