Ten Thousand Demons Return to the Ruins: Young Wilderness Lord

Three realms are separated - the immortal world is supreme, the human race is divided, and all monsters are humble. In the ancient war between immortals and demons, the demon tribe was defeated miserably. Hundreds of millions of demon tribes were slaughtered, enslaved, and sealed. The remaining demon tribes huddled in the barren and desolate "Guixu Ten Thousand Demon Realm" and were never allowed to step out of the border. The heavenly rule of the Immortal World is: Demons are born with original sin, and they can be killed when they see them.