The black dragon is the most despised existence in the dragon clan, and because of this, the energy in their body is not very strong......

Really, Wu Yu looked down on Mu Ruyue at first. (。？ *？？。

To think that a human being so young would not know much.

Until now, he didn't know that this girl was deeply hidden, and even the long-lost Rebirth Pill could be analyzed......

"Girl, yours is indeed very reasonable, but there are very few black dragons, and they were expelled from the dragon clan many years ago, where should I go to find it?"

It's really a difficult thing to do......

Mu Ruyue laughed: "Let's talk about the transaction, if I help you refine the Rebirth Pill successfully, what should I use to repay me?" ”

If Wu Yu didn't believe Mu Ruyue at first, after hearing this, for some reason, there was a kind of trust in this woman's heart.

"If you really help me, the conditions are up to you."

"Okay."

Mu Ruyue raised her head and looked at Wu Yu seriously.

"With my current strength, I can't refine the Rebirth Pill, so if I help you successfully refine it, then if you don't refine a furnace of pills, you must give me two!"

"Yes, that's not a problem."

Wu Yu nodded and agreed without hesitation.

"Second ......" Mu Ruyue paused, "You owe me a favor, I can ask for it at any time." ”

Wu Yu's strength is very strong, maybe in this magic city, there is still a place where he can be used......

"Okay, I agreed, is there a third?"

"Third ......" Mu Ruyue's eyes flashed, "I want you to stand on the side of the Seventh Prince no matter what happens." ”

Wu Yu raised his head in surprise, was silent for a long time, and said: "This is not a problem, according to the relationship between my apprentice and the Seventh Prince, no matter what, I will be on his side, so you don't have to worry about ......"

"Okay, I'll just ask for a few things."

Mu Ruyue nodded lightly: "I have the black dragon you need, and if you add a spirit fruit to the elixir, it will make the effect even more ......."

The black dragon was obtained in the ruins of the North Wind Plains, and because it was left in the Lishu, it was almost the same as after death, and even the blood had not dried up......

Wu Yu's eyes lit up: "You...... Are you really, do you have a black dragon? ”

Mu Ruyue smiled, raised her hand and took the black dragon out of the Dan book, and ^^^^^^^^

The huge dragon body appeared in Wu Yu's eyes, making his breathing shortened......

"Black Dragon, if it's really a Black Dragon, great, this time, I can finally refine the Bone Transformation Pill!"

Mu Ruyue looked at Wu Yu in surprise and said lightly: "There is no big problem with your medicinal materials, it's just that the power of dragon blood is too strong, but it won't cause an explosion when refining the pill." ”

Hearing this, Wu Yu came back to his senses from joy.

"Then what is the reason for my failure."

"Firepower too."

Mu Ruyue glanced at the Danding in front of him that was blown to pieces, and lightly hooked the corners of her lips: "Your firepower is too strong, so the time to refine the pill is too strong, if you can control the firepower well, you won't explode again......"

"Okay, then I'll try it now."

Wu Yu took a deep breath, and his gaze became firm little by little.

Then he took out the medicinal herbs and the newly prepared medicine tripod from the space ring......