After spending an entire month, Zheng Yi completely upgraded his Evil Qi, evolving the uniquely favorable Black Evil Technique to the level of the Purple Demon Fiend.
The Purple Demon Flame he condensed has the power to threaten the Divine Soul of a Purple Mansion Stage Cultivator, which is the main reason Zheng Yi has been desperately improving during this period.
Looking at the purple demon flames covering him, Zheng Yi saw the flames surge like a tide, igniting the air and scorching this space, with black matter occasionally appearing and quickly disappearing again.
"Just this Purple Demon Flame alone can pose a lethal threat to Foundation Establishment Great Perfection Cultivators. Even if a Purple Mansion Cultivator gets entangled, there's still a certain threat."
After assessing the power of the Purple Demon Flame, Zheng Yi quickly headed to the underground ruins of the Rute Army's base.
