After Sealing Demons for Twenty Years, I Became an Earthly Immortal

When Su Yu wakes up, he has become a demon-sealing disciple in the Demon-Sealing Tower of the Yuxian Sect. It is an age of chaos. Humanity’s fortune is in tatters, and people are locked in endless infighting. The demon and monster clans are bent on seizing the fortune of heaven and earth. They pour out in full force, wreak havoc across the human world, and plunge the world into upheaval. Faced with this from the start, Su Yu panics. Fortunately, he activates a System. As long as he finds and seals demons in the Demon-Sealing Tower, he’ll receive rewards. [Successfully sealed one ninth-rank demon. Reward: Vajra Divine Art!] [Successfully sealed one seventh-rank monster. Reward: Great Dao-level technique, Primordial Unity Art!] [Successfully sealed one fifth-rank human cultivator of the demonic path. Reward: Supreme Imperial Weapon, Void Mirror!] And so, Su Yu quietly seals demons in the tower for twenty years, gaining countless divine abilities, pills, and spirit treasures. His power has long since reached the level of an earthly immortal, leaving him invincible beneath the heavens. Then, twenty years later, the demon and monster clans launch a massive assault on the Yuxian Sect. Su Yu stands atop the Demon-Sealing Tower. With one strike of his sword, frost blankets the Nine Provinces, and demons and monsters vanish from the world... [P.S. The blurb doesn’t do the story justice, so please read the book.]