In the backyard of Mu's residence, all the members of the Sky-killing Team stood in front of Mu Ruyue, staring at her with burning eyes. Li Lu had told them just now that Mu Ruyue had called them here to test the medicine.

I don’t know what kind of elixir it is this time.

"Is everyone here?" Mu Ruyue looked around and said, "If everyone is here, then we should start. Before I give you this pill, I need you to swear an oath to be loyal to me for the rest of your life. If you break this oath, you will be reduced to ashes and never be reborn!"

Everyone looked at each other. People on this continent still believed in the power of oaths, so once an oath was made, few people would break it.

I remember that many years ago on the mainland, a strong man made a promise to never abandon his wife, but in the end he found a new love and gave up his wife. In the end, the strong man died miserably, just like the oath he made.

So from then on, no one dared to break the oath they made.

"Of course, if you don't want to, then please leave my Mu house now." The girl's voice was cold and heartless, but it made everyone look at each other and smile bitterly.

Do they have a choice?

Even though their master asked them to leave now, they understood that they had endured too much love from their master and would never leave so easily.

"Master, we are willing to be loyal to you forever and never betray you. If we break this oath, we will be reduced to ashes and never be reborn."

Everyone thought about it for a moment, and finally made a solemn vow.

“Okay,” Mu Ruyue nodded slightly, a faint smile appeared on her stunningly cold face, “Li Lu, pass out these Zeng Yuan Pills. This time I give you a mid-level Earth Rank Zeng Yuan Pill. After taking it, people below the Xiantian rank can break through one level. If you are a ninth-rank warrior, you can also successfully become a pseudo-Xiantian through this pill.”

The girl's words made everyone's heart tighten.

Li Lu's eyes sparkled and his saliva almost dropped. He swallowed hard and looked at Mu Ruyue with a flattering face: "Haha, Master, so you asked us to try this kind of elixir, why didn't you tell me earlier? I'm willing to try even if there are more."

Mu Ruyue glanced at him and said, "Hurry up and distribute the pills."

"I understand, Master."

When they heard that there was Zeng Yuan Dan that could improve their strength, everyone stared at the medicine bottle in Li Lu's hand, wishing they could snatch it away.

Zeng Yuan Pill, that is the Zeng Yuan Pill that can allow a ninth-level person to reach the pseudo-innate level. How can it not make people excited?

As the pill was obtained, everyone became extremely nervous at that moment and swallowed it hurriedly in one gulp. Suddenly, countless rays of light of breakthrough appeared in the sky above Mu's house.

“Hahaha! I made a breakthrough. I finally made a breakthrough.”

A loud laugh rang out from the courtyard.

The burly man laughed and actually started to cry. He thought back to the beginning, before entering Mu's house, he was just a sixth-rank warrior and would never have any chance of a breakthrough.

The only chance is the marrow cleansing pill.

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Therefore, he entered Mu's residence for the marrow cleansing pill. After taking the marrow cleansing pill, his lost innate ability returned to him again. After practicing for a month, he broke through to the seventh level. He originally thought that this was the limit, but now he has risen to the eighth level all of a sudden...