In the magic realm, magic is everything--everyone can use it, and one's skill determines their social status. Deep in the forest, oblivious to the ways of the world, lives Mash. Thanks to his daily training, he's become a fitness god. When Mash is discovered, he has no choice but to enroll in magic school, where he must beat the competition without revealing his secret--he can't use magic!

Innocent Zero has exceeded the limits of human existence and become a god! Humanity has no choice but to bow down before his awe-inspiring divinity. Except for Mash, whose muscles have unlocked an unimaginable power to give Innocent Zero a flick to the forehead he won't soon forget! But Innocent Zero still has the magic of darkness and time on his side. With Mash being all that stands between the survival and destruction of humanity, will the people rally to his side at last?