章 171: 171 State Prime Minister's Mansion

Divine City, Guo Residence.

Guo Taiping sat in the room with a sword resting on his knee. After two days of meditating, his volatile emotions finally calmed down.

He opened his eyes, a dim purple light flashed in them. Compared to two days ago, his aura had changed significantly. He had astonishingly broken through to the First Rank realm.

"Well done."

A sound of approval echoed in his ear, it was the voice of his third uncle, "You have nurtured your Mind Demon."

Guo Taiping's expression was somber. Given the choice, he would never want that man to be his Mind Demon.

All the nine surnames in the world, including the extinct Wu Family, have their unmatched secret techniques known to everyone.

But only the Guo Family's secret technique always remained a mystery, with very few people knowing about it.

The Guo Family's secret cultivation technique is called "Overbearing Heart of Mind Demon." Its cultivation method is incredibly bizarre.