章 352: Chapter 249: Upgraded to 4th Class Spiritual Root, Aptitude improvement _1

However, cultivating this Soul Secret Art successfully was no simple feat.

It required a powerful soul aptitude and excellent comprehension skills.

Red Scorpion Master spent decades studying this Soul Secret Art but never made headway.

Unfortunately, he still couldn't grasp the basics to this day.

"Impressive, very impressive."

"There are such Soul Secret Arts in the world."

"If I could cultivate this Soul Secret Art successfully, I would have another ace up my sleeve."

Zhou Sui was thrilled.

He instantly knew that this Soul Secret Art complemented him perfectly. After all, his soul aptitude was extraordinarily strong, which was highly compatible with this secret art.

As for comprehension, he wouldn't lack it with the help of Book Worm.

So, this Soul Secret Art wasn't challenging for him.

Grasping the basics was as easy as child's play.

Once he perfected it, he would command this deadly Soul Secret Art.