Did You Come to the System After Everyone Became a Demon? Nima, It Smells so Good!

Ning Wuhui was an ordinary person, but he accidentally traveled to Tianxuan Continent. After three thousand years of arduous practice, he became a feared demon. At this moment, the invincible sign-in system came in force. "Ding! Congratulations to the host for signing in at the top of Ten Thousand Demons Mountain and obtaining the Dao Heart Demon Seed Technique!" … "Ding! Congratulations to the host for signing in at the World Sea and obtaining the body of Pluto!" … "Ding! Congratulations to the host for signing in at the Eternal Abyss and receiving the God-killing Spear!" … Time flies, and a few years later, Jiehai is facing the crisis of destruction. Ning Wuhui, with hair as white as snow and wearing a fierce red robe, stood alone with his back to the people, facing the terrifying ultimate disaster. The Lord of Disaster said: "You are extremely talented. If you belong to me, I will give you the path to becoming an immortal!" Ning Wuhui said coldly: "You are not worthy!" "You will definitely regret what you did today!" "I would rather have no regrets than die! No regrets!"