I still do want to do the one horribly ridiculous spell thing, but how about I just do that later, and for now have her next echo be:

Player: Eric
Character: Marisa Kirisame
Reason for Echo: Intently observing all the various magic statues in the museum, here.
What is returned: A couple of various attempts (some successful, some not) at stealing "borrowing" spellbooks from the Scarlet Devil Mansion.