Koutarou and the others have at last defeated and captured Ralgwin, the leader of Vandarion’s faction. Given his importance to the rebellion and Fasta’s threats, however, Forthorthe is convinced it’s only a matter of time before his allies stage a jailbreak. They put everything on the line to keep him in custody. Even the court magicians and the princesses are getting involved, which complicates things for Grevanas. The old wizard grows desperate and finally decides to make his move. With neither side willing to back down, a grand battle lies ahead.

In this collection of side stories, Theia tries to get Elle to open up by reminiscing about the adventure filled summer vacation they had shared with the residents of room 106. Meanwhile, Harumi and Shizuka train the Sun Rangers, Forthorthian royals learn how to play Earth games, and much more!

Ralgwin is determined to avenge his uncle and carry out his mission of overthrowing the Forthorthian royal families, but it’s becoming increasingly clear that the villains he’s assembled to assist him don’t necessarily share his goals. The rebel leader is in for a betrayal he never saw coming, with far more at stake than he ever imagined. Meanwhile, Koutarou and the girls are preparing for the dramatic unveiling of the new Blue Knight, Forthorthe’s first knight-class battleship. A preliminary inspection of the craft turns up an unexpected development—a shadowy new face asking them to do the unthinkable.

Koutarou and the girls prepare to chase Ralgwin back to Forthorthe, but one critical mission remains before they can leave Earth behind again—they must oversee the welcome ceremony for the next wave of intergalactic transfer students. Little do they know that someone is watching their every move from the shadows, someone with a keen interest in both Koutarou’s sword and Nalfa... Indeed, the Gray Knight is getting dangerously close the group and the truth about what happened back in the ruins. Will their rematch with him be their final showdown?

Just starting high school, Koutarou is moving out on his own to take some of the burden off of his widower father. Lucky for him, he's found a room at Corona House. It has a great landlord, it's not too far from school, and best of all, it's dirt cheap. It really is perfect... except for the strange girls that keep appearing to try and take it over! But even as room 106 turns into a battlefield, Koutarou isn't willing to give up his apartment without a good fight. The invasion begins!

Kaito Sena's life hasn't exactly been easy. Unfortunately for him, death isn't about to get any better. Summoned by none other than Elisabeth Le Fanu, the "Torture Princess," Kaito has to choose what he wants for his second life-be her butler, or die a long, painful death by torture. What is he to do but become her servant...and help her eliminate the fourteen ranked demons wreaking havoc in the world! See the original light novel come to life in this gritty manga adaptation!

While the magical girls of the Corona House crew are out on patrol one evening, they’re treated to a most unusual sight—a Sanae they don’t know falling from the sky! Just who is this third Sanae, and what is her story? Koutarou and the girls have kept Earth, Forthorthe, and Folsaria safe thus far by driving back evil after evil... But the threat lurking in the shadows now is unlike anything they’ve ever faced before. Will they still be able to defend themselves and everything they hold dear when the stakes of the battle they’ve been fighting shift significantly?