How Could a Heroic Magical Girl Be the Strongest Monster?

Magical girls are beings who seem to embody every word associated with beauty, strength, and kindness. They drive back strange beasts, defeat monsters, and protect the world from disaster. Yakumo Senshi isn't interested in the world. She just wants to stay in the little suburb where she lives and be an ordinary magical girl. But one day, she hears that she's known as the Tyrant of Toyoizumi, and that she's got a crew of villains at her side, each more twisted and troublesome than the last, keeping the entire Toyoizumi District firmly under her control. Yakumo is furious and sets out to find whoever's been slandering her. Then she turns around and looks at the junior magical girls under her wing: one is forever losing hands, gouging out eyes, and carving out bones, and the organs she removes keep wriggling while still fresh and even open their mouths to call her "senpai." Another always strikes the most righteous pose, but all she actually does is hypnotize people, alter their minds, and forcibly implant things in them. And one is always watching her like a hawk, ready to launch the most spectacular rebellion without hesitation the moment she shows a weakness. Even her former magical girl partner, who vanished for years and whom she hasn't seen in ages, has turned up again. That one does whatever she feels like, and might decide to unleash a world-ending flood on a whim one day... "Magical girl profanity" I'm only trying to live a peaceful, stable life!