Nanoha in “The Town's in a Lot of Danger?”

(voiceover) That was my first mistake since becoming a mage. It doesn't feel too good when you realize that you're the reason for someone else's suffering. And when I decided to help Yuuno, I knew that, or I thought I did... From now on, I'll do better than my best. I'll give it everything I've got. This isn't just for Yuuno anymore, this is my decision, my choice. I'll collect every last one of those Jewel Seeds. I'll make sure that something like this never happens again.