Freedom Plaza is something new: a (super)hero training academy open to the public. Many of the attendees - including yourselves - are teenagers, for whom this takes the role of a high school.
Imagine: dealing with high school, but also dealing with unique super powers. At least you won't get bored.
Your group - Daybreak - has opted to take the new transfer student shopping. She is a Myrinian*, and this seems like a good way to introduce her to human culture.
If somehow a villain kidnaps her, you will feel obligated to put things right. Who am I kidding: of course a villain is going to capture her.
* Don't worry - we don't expect you to know these terms before playing!