Magical Girl Mechanical Heart

Luna has always wanted to be an Earth Guardian, but she knows it's far too late to have been chosen. It's a fool's dream anyway. The reality of battling monsters every few days to protect the human race is somewhat less 'Saturday morning cartoon' and somewhat more 'child soldier war story.' But that allure of magic always called to her... and one day, she's given an offer to have everything she's ever dreamed of. She promptly says no, because the offer is from one of the most obviously evil women Luna has ever seen in her life. She's pining, not stupid. Get out of here with that blatant monkey