After Being Sealed as a Demon for Twenty Years, I Became a Land God

When he woke up, Su Yu became a demon-sealing disciple of the Yuxian Sect's Demon-Sealing Tower. It is a time of troubled times, the fate of the human race has collapsed, and internal fighting continues. The demons and demons want to seize the fate of heaven and earth, and they have come out in full force, causing cholera in the world and drastic changes in the world. Faced with this start, Su Yu panicked. Fortunately, he activated the system, and as long as he found the sealed demon in the Demon-Sealing Tower, he would be rewarded. [Successfully sealing a ninth-grade monster will reward you with the Vajra Magic Power! [Successfully sealing a seventh-grade monster will reward you with a great avenue-level skill: Hongmeng Hunyuan Jue! [Successfully sealed a fifth-grade human demon, and was rewarded with the ultimate imperial weapon: Void Mirror! … In this way, Su Yu silently sealed the demon in the Demon Sealing Tower for twenty years, and obtained countless supernatural powers, elixirs, and spiritual treasures. With his strength, he had already become a land god, invincible in the world. It wasn't until twenty years later that the two demon clans launched a large-scale attack on the Yuxian Sect. Su Yu stood on the Demon Sealing Tower and struck out with a sword. Jiuzhou was cold, and there was no longer a word demon in the world... [Ps: The introduction is weak, please read the text]