Chronicles of Another World: The Necromancer

On the eve of the alien beasts' destruction of Earth, Professor Xiang used a compression machine to reduce Feng Lan to a soul, then nourished him with the source of the universe.

After overcoming countless hardships, Feng Lan found a new planet in the universe. It had a magnificent magical civilization. By a stroke of luck, Feng Lan obtained a body to house his soul. Empowered by the universe's primal force, he took part in a war between the Dragon Kingdom and half the world, introducing Earth's technology into this wondrous magical civilization. After the war, the Dragon Kingdom fell into internal division. His family, teachers, and friends all suffered because of him. Enraged, Feng Lan turned dark and became a necromancer... After his transformation, he united the resources of various nations and established a powerful civilization of magic and technology. He also began preparations to fight off the approaching horde of alien beasts.