It's important to know that for a normal superpower user, even if they're a martial artist, elevating their superpower cultivation from Level 4 Spirit God to Level 6 Spirit God still takes decades, or even dozens or hundreds of years.
Even for geniuses with sufficient Heavenly Materials and Earthly Treasures, it would require several years. However, Ye Feng, by devouring the spiritual power of those strong individuals, achieved what others would take a long time to do in less than half a day.
The cost in return is enormous; this caused Ye Feng to be influenced by negative energy, which Ye Feng needs to eliminate. Fortunately, he encountered only Boss Jin's minions.
If he had faced a strong individual at the True God Realm today, or even just a strong individual at the Divine Realm during battle, and the negative energy outburst suddenly caused Ye Feng to lose his combat strength, it would be enough to take Ye Feng's life.
