"I studied the Underworld King Sect's Cultivation Technique last night and found out that things are actually simpler than we thought."
Wen Yulong was excited and began explaining directly to Chu Liang. Chu Liang didn't mind being interrupted and nodded for him to continue.
"The Underworld King Sect's research on Soul Cultivation is indeed profound. Even though some of their methods are nefarious, like you said, there are many that we can use, and this Soul Realm Space is just one of them!"
"I discovered that the reason they extracted Soul Fire to form a formation is to control the life and death of their Soul Envoys. With a strand of Soul Fire at hand, they could kill them with a secret method at any time. This is a tactic of intimidation. If it's just about communication, leaving a bit of Spiritual Sense would be enough!"
He pulled out the Soul Summoning Order from his bosom and with a Formation diagram in hand, he made comparisons and calculations.