"You might still be wondering why the S-tier Malevolent Phantoms don't kill martial artists who practice soul mastery—it's because they're too weak. Their soul essence isn't just small in quality but poor in quality," Billy explained.

"Even if they were all killed, it would be impossible to overflow the Mystical Explosive Orb. Compared to that, harvesting soul essence from the Malevolent Phantoms—who are born from pure soul essence—would be much faster."

So that was it! Felix suddenly recalled Donna mentioning the limited time they had here. Perhaps the Malevolent Phantoms were just desperately clinging to survival by racing the time they had.

"Then what's the use of this?" he asked.

Billy's expression turned solemn. "After the Mystical Explosive Orb overflows with soul essence, it can be used to reshape the soul while retaining the current essence of your soul. For example, you're currently mastering the Transcendent Realm.

"But you feel that your body isn't physically fit and y