After this packing, Mu Yang was full of goods and could not put down several storage bags. Some smaller items were stuffed into Mu Yang.

This time I made a fortune in the ground and basin, such as treasures of heaven and earth, such as spiritual weapons, talismans, spiritual herbs, and rare antiques, all of them are available!

It is probably all the things accumulated by these demons during their lifetime, but now they are all in Mu Yang's bag.

Of course, there is also a small wooden ball among them. Mu Yang has collected three such balls before.

Including this one, Mu Yang had another bold guess in his mind, "The first one is a fireball, the second one is a bronze ball, and the third one is a water ball. Now it is a wooden ball. Isn't this the gold, wood, water and fire in the five elements? Then will the place we are going next be related to earth?"

Mu Yang felt that his reasoning was very reasonable, but, does the demons also pay attention to this thing? Maybe it’s a coincidence?

So Mu Yang didn't take it too seriously. It's useless to guess blindly now. When I go to the next venue later, everything will be clear.

Among these treasures, Mu Yang was very interested. It was a small heart-shaped stone, almost as big as half a palm, but there were thirty-three small patterns on it!

Of course, if this is the only way to attract Mu Yang's attention, the most peculiar thing is that the color on the left and right sides of this thing is different, with the middle as the dividing line, half pure white and half pure black!

This is a bit interesting. Mu Yang took this little stone to Luo Yue, "Look! My carefulness!"

Luo Yue was lowering her head and translating the sword score. Suddenly, Mu Yang stretched out a hand and attracted her attention. After seeing the stone in Mu Yang's hand, she put the pen in her hand, put the stone in her hand and observed it for a while, and then returned it to Mu Yang.

"Yes, it's also a good thing. You've refined it here now, which will be of great benefit to you."

Mu Yang asked in disbelief: "Ah? Refining? Can this thing be refined?"

Luo Yue gently pulled his hair around his ears, "This stone is called Yin-Yang Sword Heart, which is a rare treasure. It is similar to the sword soul stone you obtained before. It is an supreme treasure for those who have a sword body."

The sword soul stone that Mu Yang once obtained in the ruins of Mengluo King was later given to Chen Lingfeng and helped him to upgrade to second-class spiritual power within one night. "Since that's the case, can't I give it to Lingfeng directly? He is born with a sword body, and it should have a greater effect, right?"

But Luo Yue shook her head and decisively denied it, "He has refined the sword soul stone and cannot refine the Yin-Yang sword heart anymore. Your special physique is a rare spiritual power upgrade, and it can also maximize its effect."

Mu Yang has already learned about the issue of spiritual power upgrade. It is different from Chen Lingfeng and others' spiritual power improvement. Most people have the opportunity to increase their spiritual power level when using treasures with extremely high levels, but this kind of improvement has an upper limit.

Like Chen Lingfeng and Qin Yun, their spiritual power is now second-class and has come to an end.

However, in a rare system like Mu Yang, the conditions for improving the spiritual power level are very harsh and very slow, but it has no upper limit! In other words, Mu Yang may be able to upgrade to first-class spiritual power in the future.

Mu Yang played with the little stone in his hand, but he didn't expect it to be quite awesome. "Then if I refine it, can I improve my spiritual power?"

"This is just its most basic function. The main function of Yin-Yang Sword Heart is to build a phantom system in your body, so that your spiritual power will be twice as high as originally, and at the same time give you the ability to use two swords. Holding the sword with both hands can also erupt twice as much damage."

This sounds a bit mysterious, and Mu Yang is a little unbelievable. Can such a small stone have such a great effect?

But Mu Yang thought again, there was no need for A Yue to lie to him, right? Since it is really so powerful, wouldn’t it be a waste if you don’t need to?

So Mu Yang sat down cross-legged and began to refine the Yin-Yang Sword Heart!

"Well, how do you refine this?"

A stone is not as good as herbs, so Mu Yang is ready to put it on, but he is a little confused when he holds the stone.

Luo Yue took the Yin-Yang Sword Heart from Mu Yang's hand, and suddenly he bounced his fingers and directly bounced it into Mu Yang's abdomen! "Okay, use your spiritual power to feel it."

At this moment, Mu Yang only felt his abdomen hurt like it was torn apart!

He gritted his teeth and was sweating profusely, but he couldn't scream no matter how painful it was. He couldn't show his cowardly side in front of the goddess, and could not...

"ah!"

It really hurts so much that I can't help it.

Mu Yang already regrets the decision to refine it.

But it has reached this point and it is too late to regret it, so Mu Yang can only grit his teeth and persevere.

At this time, the Yin-Yang sword heart was suspended above his dantian, and tiny white and black sword energy continued to emerge, raging in Mu Yang's body. This was the real reason for his pain, and these sword energy were at risk of destroying the dantian at any time.

Mu Yang hurriedly controlled his spiritual power to wrap the Yin-Yang Sword Heart, but at this time it was extremely docile and seemed to be particularly kind to Mu Yang.

Mu Yang realized that this might be because of what Luo Yue just said, which is the special physique.

Under the envelopment of spiritual power, the Yin-Yang Sword Heart began to gradually decompose, but this speed was very slow.

The decomposed substance began to spread throughout Mu Yang's body, showing that it was attached to his meridians. After a moment, it broke out from the meridians and turned into black and white lights. On the original meridians, a structure like the meridians was built.

As the more the Yin-Yang Sword Heart decomposes, the more meridians will be reconstructed.

It was like the meridians in Mu Yang's body separated another shadow!

Not only those tiny meridians, but also the nine thick spiritual veins in Mu Yang's body were copied from the original place.

Moreover, in this shadow-like meridian system, there is also a black and white force wandering!

Mu Yang can even mobilize these powers, just like using spiritual power, and use them freely.

After he completely solved the Yin-Yang Sword Heart, another complete meridian system in his body was also constructed! Even next to the Dantian, a black and white Dantian of the same size appeared. This new Dantian is the core of the new system!

This is what Luo Yue said, double the power!
Chapter completed!