The Void Corridor between the Blood River Realm and this world had undoubtedly been dealt with by Mysterious Capital Palace beforehand.
Su Che himself had escaped from there, and he knew even better what the ecology on the Blood River Realm's side had once been like. Most of them had been Heavenly Demons incapable of surviving beneath the Ninefold Heavenly Firmament.
The demonic lineages beyond the domain could roughly be divided into three kinds.
The first were the Heavenly Demons: formless and shapeless, the true root of the Outer Heavenly Demons. Because Heavenly Demons possessed no Numinous Obscurity of their own and existed by relying on the thoughts, desires, and vitality of others, they were also known by such names as Other-Transformation Demon and Desire Realm Heaven.
The second were Demon Retainers. So-called Heavenly Demon retainers were cultivators corrupted by Heavenly Demons, reduced to their servants and incarnations. Among them were no shortage of great figures who had attained the Longevity Realm, or even reached the levels of Tribulation Dharma and Earth Immortal. To cultivators traveling the Outer Void, this category was the most troublesome opponent.
The third were the Slave Race. The Slave Race consisted of peoples enslaved and remade by Heavenly Demons. They had completely lost themselves, breeding without end and waging war ceaselessly at the Heavenly Demons' command.
From a certain perspective, the Slave Race formed the main force of the Outer Heavenly Demon armies, while the Demon Retainers served as their generals and commanders. The two were two sides of the same coin, together establishing the Heavenly Demon Race's hegemony throughout the Outer Void.
Yet a strict dividing line existed among these three categories. Other than Demon Retainers, whether Heavenly Demons or the Slave Race, they found it difficult to break through the Ninefold Celestial Firmament