“Kill! Kill! Kill!”

Gu Zhi felt the changes in his cultivation and laughed out loud towards the sky.

The devouring of the Gu family became faster and more fierce.

The first level of foundation building.

The second level of foundation building.

The third level of foundation building.

…

In Gu Zhi's dantian, seven drops of liquid that looked like red jade were constantly blending and boiling.

This means that Gu Zhi’s cultivation has reached the seventh level of foundation building!

"hiss--"

Gu Lingfeng felt the change in Gu Zhi's aura, and was filled with grief and anger, as well as shock.

When Gu Zhi came, he was only at the ninth level of Qi training, but in less than an hour, he had already reached the seventh level of foundation building!

Although the cultivation level of demonic cultivators often improves rapidly in the early stages, isn't Gu Zhi's progress too rapid?

Even if Gu Zhi was practicing the Ten Thousand Blood Demon Sutra of the Ten Thousand Blood Demon Sect, the speed at which his cultivation improved was too exaggerated, right?

"Too slow! Too slow!"

Gu Zhi shook his head in disappointment.

He has devoured, refined, and absorbed the life essence of all thirty-two Gu family cultivators and thousands of people in the Gu family.

His cultivation level has only reached the seventh level of foundation building.

Although part of the reason is that his foundation in each small realm is extremely solid and perfect, which makes his combat power far exceed that of cultivators in the same realm.

Even if he doesn't have a special physique, it is easy for him to kill enemies across borders.

However, Gu Zhi felt that the main reason was that the conversion rate of "Devouring the Sky Demon Art" to the essence of life was too low.

The "Demon Art of Devouring the Sky" is to kill a person and then absorb that person's life essence. With this back and forth, the conversion rate is naturally not high.

If I could sacrifice someone alive...