Mami's warm personality has made it difficult for her to adjust to her solitary life as a magical girl, where survival often takes precedence over kindness. When she meets Kyouko Sakura, a fellow lone wolf, she is excited at the prospect of working together with another magical girl and forging a friendship built on ultimate trust. But many are the sacrifices all magical girls must make, and the consequences of Kyouko's choice are only just becoming...