The very beginning has Mami teaming up with two other magical girls to fight a witch. When one of them decides it's too strong even for the three of them, she suggests they retreat. Mami then summons a swarm of ribbons to ensnare the Witch, declaring that she won't flee from battle if it means protecting the people of Mitakihara before blasting the witch the pieces. And this is still early in her career in her as a magical girl.
