Machimaho: I Messed Up and Made the Wrong Person Into a Magical Girl!

Fleeing from the wicked Atsunmo, Myu, a divine entity, frantically seeks out a worthy candidate to transform into a magical girl and vanquish the atrocious creature. Just as the demon catches up with Myu, he catches sight of a high school student who appears to be an ideal choice. Possessing luscious locks, a gentle countenance, and other appealing characteristics, she appears to have it all. However, Myu is taken aback when she pulls out a cigarette moments after he grants her the powers of a magical girl.
Surprisingly, the girl, Kayo Majiba, is a belligerent delinquent with a demeanor that defies her appearance. Without breaking a sweat, she soundly defeats Atsunmo with a single blow. Sadly, the real adversary that Myu now faces is Kayo herself. Nevertheless, Myu is obligated to lead Kayo towards destroying malevolent forces. But can he fulfill his duty when Kayo’s tough exterior seems to conceal more than meets the eye?