"Does it require strength to break through before I can advance to the Perfected Heart Demon State...?"
Hearing this, Mo Yu narrowed his eyes slightly and murmured.
His strength had already reached the Upper Earth Sovereign level, and only two or three years had passed since his last breakthrough. If he wanted to break through again, it would probably not be simple.
As thoughts stirred in Mo Yu's mind, the Heart Demon Thunder Emperor before him raised his head and gazed at the Thunder Emperor Seal in his hand. After a moment of silence, he smiled and said, "Since this Thunder Emperor Seal still contains some spiritual energy, I'll give you another little opportunity."
"Prepare yourself."
The Heart Demon Thunder Emperor reminded him, then slowly raised the ancient, unadorned Thunder Emperor Seal in both hands. His eyes were filled with affection.
This Thunder Emperor Seal had once accompanied him throughout his life, witnessing him rise from an unknown figure to become the renowned Heart Demon Thunder Emperor of the Great Thousand World.
"For this final stretch, I hope you'll help me one more time, old friend." The Heart Demon Thunder Emperor spoke softly.
Buzz.
The Thunder Emperor Seal was sentient. At this moment, it emitted a crisp peal of thunder. Endless lightning surged across its surface, yet it was exceedingly gentle, no longer possessing its former sharpness and murderous intent.
The Heart Demon Thunder Emperor gave a slight smile and raised his palm. The Thunder Emperor Seal shot into the sky, then transformed in a flash into a gigantic pillar of light that covered ten thousand miles of heaven and earth. Within it was an extremely terrifying force.
The Heart Demon Thunder Emperor crooked a finger. Endless lightning within the pillar immediately poured down like mercury spilling across the ground,