Backing the claims

"Fang Xian. Follow me, the area that requires a key is over here." Zhang Liuwei started walking deeper into the cave and Fang Xian's vision of him was fairly obscured by the lack of light in the cave.

Still, he could barely make out a discernible figure and followed it, eventually stopping moving.

He was stopped not by himself, but by some sort of restriction placed upon this specific area by Eternal Demon Overlord.

Fang Xian could see a faint white light glowing in front of him, providing some leverage as to Fang Xian's vision.

"This is where the 'key' must be used. I am unsure what this key actually even is, so please do enlighten me-" Zhang Liuwei turned around to face Fang Xian but he was not there.

He had entered the inheritance already!

…

A day later, Zhang Liuwei was tired of waiting, he was about to leave with dissatisfaction and regret in his heart before he heard the familiar voice of Fang Xian: "Lucky. I came out before you left. Quickly enter the inheritance, I didn't touch anything, I just used the abnormally high concentration of soul qi to ascend to rank five peak-level rapidly. To be honest, I wouldn't be surprised if you achieved rank seven middle-level cultivation here, however, the heavenly tribulation would most likely be the extreme heavenly tribulation, facing that in here would be too detrimental."

"You were rank four peak-level a day ago, how high is the soul qi concentration that you can advance a whole rank?" Zhang Liuwei was quite shocked but more than anything, he was happy that Fang Xian hadn't betrayed him. "Anyways, how grand is the inheritance?"

"Haha, you will not be dissatisfied with this inheritance, no one would. It contains a rank eight spatial path immortal soul beast, the infinite space travel immortal soul beast. This soul beast is not the complete version of it, it does not have any amazing effect at the moment, but its desired effect is to be able to transport the user anywhere in this world, and anywhere in any other world, the power is too great!" Fang Xian explained.

"Rank eight immortal soul beast, how will I able to use it?" Zhang Liuwei was extremely interested, however, he realised the major flaw.

At that moment, Fang Xian revealed the instant purification soul beast, saying: "Raise this soul beast to an immortal soul beast and you will be able to use a soul beast at a higher rank than your current rank."

"Oh, this is convenient. What do you want in return?" Zhang Liuwei was slightly shocked but after all, it was only a mortal soul beast while he was a rank seven immortal, only when it was an immortal soul beast would he really care.

"One mortal soul beast from the inheritance, let me enter with you and inspect for myself to see which one suits me the best." Fang Xian said plainly.

In truth, this was all part of his plan, he already knew which soul beast he wanted, it was a rank five soul beast which was he put all of his efforts and energy into ascending, it was all for this soul beast.

This soul beast was the infamous lifespan steal soul beast! The pinnacle of path combination, showing supreme comprehension of pilferage and lifespan path, the core to one of Fang Xian's ultimate goals.

"Hmm, I guess I will let you, however, if the soul beast is one that I want, you have to get a different one." Zhang Liuwei conceded but not without a counter condition.

Fang Xian silently nodded his head and walked towards the inheritance, stretching out his hand when he was restricted by the white light.

There was one simple reason that Fang Xian could enter the inheritance while Zhang Liuwei couldn't. It was due to his lifespan path comprehension, it was on par with his refinement comprehension, meaning he would be considered a prodigy regardless of it was a tribe, clan, sect or even a super sect. He had studied lifespan path to this degree in his first life to get closer to his goal of attaining eternal life.

"Fang Xian, may you expose your secret?" Zhang Liuwei was curious as to why he, a rank seven immortal could not breach the inheritance but a rank five peak-level could. He understood that Fang Xian was a rank six immortal in his first life, but his achievements could not compare to Zhang Liuwei.

Little did Zhang Liuwei know, he eventually became a rank eight overlord late into Fang Xian's first life.

He reached this rank after eight hundred years of stagnation at rank seven, he had accumulated far more life experience and knowledge than Fang Xian, he had already lived for over ten thousand years at this point in time.

Furthermore, he was the strongest rank eight overlord in all of human history, this was because he had not been exceptional in a handful of paths like other overlords, instead he had been proficient in almost all paths, earning him the eventual title of Versatile Factotum Demon Overlord.

He was once a righteous cultivator and an immortal master of True Heaven Sect, the strongest being known to still be alive publicly.

Then, he parted ways with the righteous path and turned to the demonic side, indulging in the pleasures of the world with Fang Xian by his side.

Finally, after he was far from Fang Xian, alone and mentally unstable, he broke through to rank eight realm, achieving infinite clarity and wisdom.

This was the grand story of Zhang Liuwei, a story only known by one man now.