That battle was not just between the Demon Lord Nie Jiuque and the Soul-suppressing Beast, it involved the entire Demon Realm and Netherworld, with the Immortal Realm also entangled.
Nie Jiuque was naturally no match for the Soul-suppressing Beast. In the first battle, he returned defeated.
But it wasn't long before he rallied his forces and stormed into the Netherworld, and this time he was clearly prepared. Somehow, he had acquired a Magic Artifact, and used his own blood to cast a grand formation, trapping both himself and the Soul-suppressing Beast within it.
Nie Jiuque at the time was making a desperate last stand. He declared that as long as the Netherworld returned the soul of the Immortal Shang Ying to him, he would withdraw his forces immediately and would never set foot in the Netherworld again. For the damage caused by him to the Netherworld, he was willing to compensate even if it meant cutting flesh and bone.
