Invaders of the Rokujouma!? Volume 7

With the end of the year approaching, things are getting busy around Corona House. Even though it's winter vacation, there's a new play to get ready for, Koutarou has picked up a new part-time job that no one seems to know anything about, and Ruth has decided to take up martial arts training. Come January, preparations for "The Silver Princess and the Blue Knight, Part 2" kick into high gear, but when an old rival reappears dead set on revenge, Koutarou may be in for the trip of a lifetime.