After 90,000 Years of Invincibility

He was the Heaven-Devouring Demon Emperor, master of the endless demon realm in the Eternal Life Realm and its countless evil spirits. One careless move, and the Demon Emperor, who had been invincible for ninety thousand years, returned to the city to make up for the regrets of his past life and embark on a path of slaughter. In this life, he will remain invincible until the end of eternity.