Ultimate Series: Demon Lord, I Became a Teacher?

Luo Yu traveled to the world of the Ultimate Series hundreds of thousands of years ago and became the Supreme Demon Realm as a demonized supernatural walker! The entire Demonic World and the Twelve Spacetimes trembled because of him! He is also known as the most powerful Demon Lord in the history of the Twelve Spacetimes and Demon Realm! Under his rule, the demon world has maintained peace with the Twelve Spacetimes for ten thousand years! But after ten thousand years, he was tired of his position as the supreme leader of the Demon Realm, so he left the Demon Realm and retired to the twelve time and space and the Demon Realm. After hundreds of thousands of years. Luo Yu became the history teacher of the Ultimate Class 1, teaching history lessons to the students. But at this moment, in order to become a demon, the Black Dragon set his sights on the Ultimate Class... And at this moment, the demon world, hundreds of thousands of years later, is once again ready to conquer the twelve time and space... When the devil comes again... A figure walked out of the classroom of Guava High School and stood in front of a million demon army—— At that moment. All the demonic armies knelt down. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.