Global Awakening: Monster Taming Necromancer - Chapter 4: Spellbook

[Urban Masterpiece! Over a Million Subscribers] The Imperial Physician of Heaven was reborn in the City of Flowers, seized control of the world's viruses, absorbed Soul Consciousness, amassed wealth rivaling nations, held overwhelming power, and was surrounded by beautiful women.

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

In a world where mysticism and steam industry coexist, cursed objects, the Reception Bureau, and Evil God fanatics...That year, the King was bedridden with illness, the successor was inexperienced, and power slipped away, leaving the empire teetering.That year, external forces gathered around the empire, and foreign civilizations eyed it covetously.That year, the prophet delivered a prophecy that the era of civilization was nearing its end.That year, Ethan arrived at a small town on the outskirts of the imperial capital. To survive in this perilous era, he began practicing Fireball Skill.Years later, Ethan looked at the meteor falling from the clouds and realized there was a problem.The beginner Magic he learned seemed a bit off.