Wave after wave of invisible Power of the Soul emanated from its body, surging toward Gu Zheng.
Then, it was all blocked by the deep, ink-black scales, where it dissipated and crumbled.
Gu Zheng himself didn't need to resist. Instead, he released his Spiritual Power, connecting with the Divine Soul fluctuations of the Black Sheep Demon.
BUZZ!!
The air distorted, sending out ripples.
"ROAR~!"
The Black Sheep Demon suddenly let out a mighty roar. Its whole body shook violently as it resisted with all its might.
But soon, its resistance vanished, and its body stopped trembling.
Finally, it obediently prostrated itself on the ground before Gu Zheng and stiffly called out, "Oka, greetings, Master!"
The Nether Heart Slave Seal was successfully implanted!
'Can I use the Slave Seal on a Demon Fiend?' Gu Zheng had been struck by the sudden idea just a moment ago.
The main issue was the Old Ox Mountain passageway; he couldn't stay here forever.
