Part 19: Additional Music
I think Feinne worked through the first five levels of Misha's Cosmosphere before continuing the story, but has been spacing the posting of such so that it fills otherwise update free days.
That is in fact the case.
I'm going to put some backstory or music tonight because I'm just too tired to write tonight. I'll put Aurica's first Cosmosphere level up tomorrow and shoot for Chapter 11 on Saturday.