When other people get sick, it's usually cancer or some other incurable disease. But when it's me, I get a bizarre illness that's exclusive to me worldwide!
So, to stay alive, I sign a contract with an evil magical spirit and turn into a witch. I torment and train those righteous magical girls for fun, hoping it'll cure me.
That's what I say, anyway. But why are the magical girls I meet all so improper, and why do I have to help them sort out their problems and work through their troubles...?
Being a good person is already a losing deal. Are you telling me I can't even manage to be a bad person?