You know, I'd never really thought about it, but the "my mom's been worried about me" points out how, while Miho was obviously disowned, Erika was not, and because they live on aircraft carriers, it's kind of a big deal to be on a different ship and you would be separated from your family for a long time if you didn't own a personal aircraft.
But I mean, as long as Ooarai loses here, I'll be able to go back to Kuromorimine, y'know?I mean, the plan was for me to transfer from Kuromorimine to Ooarai for only a while in the first place...My mom's been worried about me too...And since I was given this mission by my commander, I'm going to do everything I can until it's over!!