Super Invincible Immortal Doctor

"Master, I’ve found it. However, the barrier here is stronger than the one outside." Yu Yanshu pointed to the eye of the barrier, and Su Chengyu said solemnly, "You step back, I’ll break it!"

With mana infused, the Dragon Slayer Sword gave off a bright azure glow. Su Chengyu swung it towards the eye of the barrier.

He held nothing back in his swing, driving his mana to its limit and tearing a gap in the barrier. Su Chengyu grabbed Yu Yanshu’s hand, and like lightning, they went through this gap and entered the pavilion.

This pavilion was built from blocks of stone and has three floors, its stone door big and thick.

On the left side of the stone door stood a stele, and on the right was a stone statue. Four big characters were carved on the stele - "Liyuan Cave Heaven".

Next to these big characters, a hundred characters were carved in silver strokes, each character powerful and vigorous. These characters represented a set of swordsmanship techniques.

With various secret techniques from the Grand Supreme Taoist Scripture, Su Chengyu didn’t have the state of mind to slowly comprehend this set of swordsmanship techniques.

These hundred-plus characters were the biography of the master of Liyuan Cave Heaven, a loose immortal who failed to survive the Earth Immortal tribulation and chose to scatter his body, becoming a loose immortal.

The strength of loose immortals is below that of Earth Immortals but above that of those in the Hollow Realm. The Liyuan Loose Immortal was born more than a thousand years ago and took three hundred years to cultivate to the Hollow Realm, then failed to survive the tribulation, scattered his body, and became a loose immortal.

Loose immortals also have their tribulations. After surviving nine loose immortal tribulations, one can ascend and become a true immortal.