Invaders of the Rokujouma!? Collector's Edition 8Paperback, 23 November 2021

Contains Volumes 21-23
With the coup d'etat in Forthorthe reaching critical mass, Elfaria and Theia decide it's finally time to return home. Their enemies won't make that easy for them, however. It'll be a long, hard fight ahead of them, and it all starts here.
Koutarou finally makes his return to Forthorthe and things are already heating up. But before he can even start to help Elfaria, he'll have to get Theia to safety. Stranded in the woods with no way to reach their allies, things could get tricky...
In this special collection of side stories, Harumi asks Kiriha for some bad girl training; Clan wants to become a martial artist for a special reason; Elfaria's getting a makeover; and Koutarou's getting a confession?!