I was initially going to say there were too many characters MSTing this, but in the end, I think they all had about equal screen time, and I wasn't too confused about who was talking at any one time. You did a good job of giving everyone a distinctive voice, so the dialogue doesn't feel interchangeable. The two voices that felt the most similar were Nanoha's and Homura's, but I suppose they are very similar character archetypes, after all. The fact that I'm completely unfamiliar with both doesn't help me, either.

Also, near the middle, Sergio says, "People doesn’t try to pair up other people," instead of, "People don’t try to pair up other people."