The Martian Crusade (Youjo Senki/War of the Worlds) (Patreon)

This Youjo Senki/War of the Worlds crossover was commissioned by Mackenzie Buckle.

Summary: The Martians have their own god who is pissed at Being X, and drives his believers to invade earth. Naturally, fueled by their own divine blessings, these Martians are not going to keel over to virus and bacteria. No, making them die is unfortunately Major Degurechaff's job.