Invaders of the Rokujouma!?

Newly Remastered Translation! 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!

Thanks to an intervention from a certain someone, Koutarou and the invaders are now forced to try and work out their territorial dispute peacefully. But when playing cards gets boring, scheming Kiriha and maniacal Theia cook up a plan. Their next battle for control of room 106 will be... the obstacle marathon for clubs at the school sports festival?! But won’t the invaders all have to join clubs first? What happens when Koutarou decides there’s something more important at stake than room 106? And how does a ghost even run a marathon?

Summer vacation is right around the corner, but can Koutarou and the invaders manage a ceasefire long enough to actually enjoy it? Luck seems to be on their side when Ruth wins them a trip to a seaside hot spring, but it’s not all fun and games with shadowy figures stalking their every move. When push comes to shove, can rivals become allies to save one of their own? Or is it every invader for themselves?

When Theia’s Blue Knight detects a strange anomaly near Earth, it looks like Koutarou and the others have a new kind of invader on their hands. Another princess from Forthorthe has come to sabotage Theia’s trial, but no one seems to be able to find her! The threat lingers as they get involved with the drama club and agree to help put on a very special play for the upcoming cultural festival. And just how long can Yurika keep a you-know-what in room 106 a secret from Ruth?

Harumi has a special favor to ask Yurika concerning Koutarou, but Yurika will have her own set of relationship problems when a new transfer student shows up at school the next day. The new girl—Aika Maki—is an acquaintance of hers, but she’s not the old cosplay friend everyone seems to think she is. If what Yurika says is true, Maki is the evil magical girl that she’s been trying to warn the others about all along. The biggest danger now may be that no one believes her.

Lately, Koutarou has been growing more and more suspicious of Kiriha. Claiming that she’s come to invade the surface is one thing, but what on earth is she doing helping the neighborhood association clean up the city? Is this all part of some nefarious plan? Or is there something else going on? When Koutarou works up the nerve to confront her about it, she responds by... asking him on a date?!

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.

Back from his unexpected travels, Koutarou tries to settle in to his life as a normal high school student again. A school field trip to a ski resort sounds like just the right thing to do the trick. When they get there, however, Yurika notices that Maki is sneaking into the mountains to use magic. Worried that Darkness Rainbow is up to something, Yurika goes to investigate, but the investigation turns into a lot more than she bargained for when she comes across a demon.

With the civil war now in full swing, Alaia and her allies mount a resistance to try and retake their beloved country. History seems to be unfolding all according to the legend, except for one major problem. The Blue Knight is still missing. In his stead, Koutarou and Clan find themselves in the center the chaos, trying to keep history from going too far off the rails so they can eventually get back home to their own place and time. Will they be able to save Forthorthe and themselves? The 10th book in the Invaders of the Rokujouma!? series!

Valentine’s Day is right around the corner, and the girls of room 106 are scrambling in preparation for it. It’s not all fun and games, however, because not everyone seems to be able to admit their true feelings. Ruth receives a strange message from her parents back home in Forthorthe, leaving her with an important decision to make about her future. And on top of everything else, she seems to be getting closer and closer to figuring out what happened to Koutarou while he was away.

Koutarou and Clan are working their way back home from their interstellar adventure, but they have to make a pit stop about ten years off from their intended destination. As luck would have it, they encounter a young girl right after they land. Worried that she might have seen their spaceship in action, Koutarou decides to dig a little deeper. Things take an unexpected and heart-wrenching turn, however, when he realizes he has more in common with this girl than he initially thought.

Now that the invaders have come to an understanding of sorts, things are going smoother than ever in room 106. Spring is in the air—tulips, friendships, and potential romances are all about to burst into full bloom. Koutarou and the invading girls have never been happier together, but nothing lasts forever. Things turn dark quickly when they find out that they’re going to have to say goodbye to one of their own... and soon. Without even any time to prepare, will the bonds they all share be enough to pull them through?

The evil magical girls finally make their move to seize the mana pool in room 106. Shizuka and the other girls will have to go all out to protect Corona House from strange new enemies, while Koutarou crosses paths with an old foe who’s gotten a bit of an upgrade. The most intense battle yet, however, is the one going on inside Maki’s head. Her job as Dark Navy now means making a move on Koutarou, but all she wants is to protect him. Does she uphold her mission, or does she follow her heart?

After Theia receives a distressing message about her mother in Forthorthe, she’s forced to make what could be a life-changing choice. Does she rush home to be with her family in a time of need, or does she stay on Earth to complete her trial with the friends and the boy she’s come to love so dearly? Nothing is simple, however, when it comes to the politics of a galactic empire. The trouble runs deeper than it seems. Koutarou is reunited with a few old friends, one of which he’s not too happy to see.

In this special collection of stories, new and old friends alike appear. Shizuka tells the story of how she lost her parents. She also comes to learn of the very special power that’s been sleeping within her, and just what consequences that has for her... waistline? Yurika goes on a little quest to try and find herself, or rather, herselves. And finally, the story of how Koutarou knows Theia’s mother.

Deciding they need a bit of a break, Koutarou takes the girls out for a day of beetle hunting. An unexpected reunion, however, leads Kiriha to realize there’s more than just beetles in the mountains outside of Kisshouharukaze City. It seems the radical faction has been working in the shadows all this time, and they’ve already established a foothold on the surface. But a factory? Magicians? Automated weapons? It sounds like they’re preparing for something big, but this is only the beginning.

With things coming to a head between the radical and conservative factions, it’s time for Kiriha and the others to take a stance. After discovering a cataclysmic weapon in the hands of the radicals that stands to threaten both the surface and the underground, can they act in time to prevent tragedy? The clock is ticking, but it won’t be the only thing working against them since the radical faction has a little... outside help... on their side.

Things have finally quieted down for Koutarou and the Corona House crew, meaning it’s time to kick back and have a little summer fun! Things start off at the beach where swimming, volleyball, and a test of courage are all on the menu. After that, there’s still plenty more fun to be had at a local festival and the amusement park. But when summer vacation draws to a close, Yurika’s worst nightmares come true... And what’s this about a surprise visitor at the apartment?

The Satomi band of knights is steadily expanding and all is well in room 106. At least for a little while. Yurika comes to everyone with an unusually serious request—she wants them to help her savior and mentor, the former Rainbow Nana. Children then mysteriously start going missing in Kisshouharukaze City, which can only mean one thing. The evil magical girls of Darkness Rainbow are back in town and they mean serious business this time. Deadly serious business.

Yurika has made the bold decision to attack Darkness Rainbow’s base in order to try and prevent all-out war in Folsaria. It’s going to mean a bit of a field trip for everyone, and a very big battle. Koutarou and the girls will have to consolidate all of the power they have—and maybe borrow some help from a few new(?) allies—to get home safely this time. There’s a strange enemy on the horizon, but perhaps the only thing harder than fighting yourself is fighting someone you love...

Volume 20 is a special collection of side stories. First up, Yurika announces that she’s quitting cosplay—or, at least, that’s the impression the cosclub gets. Next, Sanae and Ruth do a little dream diving. After that, Maki confronts Theia about some unexplained expenses she’s recording in the Satomi knights’ ledger. Then lastly, Shizuka recruits the entire Corona House crew to help out with the cook-off at the cultural festival. The girls will cook while Koutarou judges, and the results are explosive to say the least.

With the coup d’etat back home in Forthorthe finally reaching critical mass, Elfaria and Theia decide its time for them to return. Theia is reluctant to drag her friends into the politics of her homeland, but they’re just as stubborn as she is. They band together and set out for Forthorthe, but their enemies will make sure not even the trip there is easy. They all have a long, hard fight ahead of them—and this is just the beginning.

Koutarou at last makes his return to Forthorthe, although it’s not in a very glorious fashion. Stranded on Planet Alaia with Theia and Yurika, he’ll have to figure out a way to use the limited resources they have to get past the imperial troops everywhere if he ever hopes to make it back to safety and the rest of their friends. Fate has a few familiar twists in store, however, as the coup d’état gets off to an ugly start and their enemies show their true colors.

It turns out the timid, polite Harumi has a secret admiration for the way Kiriha teases Koutarou, so she does the unthinkable—she asks Kiriha to teach her how to become a bad girl too! In the next story, Clan also asks for something a little unusual. She starts martial arts training under Koutarou and Shizuka, but is she really up to the task when she can barely handle her own feelings? Next, there’s a surprise royal visitor to room 106, and Sanae, Yurika, and Maki decide it’s time for a makeover of magical proportions. Finally, it’s time for the Kisshouharukaze school field trip, complete with surprise confession!

With Forthorthe on the verge of erupting into civil war like it hasn’t seen for thousands of years, Elfaria and the others do what they can to regain the trust of the citizens. But as it turns out, all of Forthorthe has their eyes on her, her daughter... and the mysterious knight in blue armor. Can they win the hearts of the people while trying to keep a very big secret from them? And with the vicious Vandarion plotting against them, it looks their bloodiest battle yet may be looming on the horizon.

With one of their own in trouble, Koutarou and the others are left reeling. Clan thinks she may have gotten to the bottom of things, but if what she says is true, the crisis they now face has been in the making for thousands of years. But the surprises are far from over there. A strange message for Koutarou could mean a tentative new alliance with a most unexpected partner. The offer comes at a time when they could desperately use the help, but what will the true cost be?

With things slowly shifting in their favor, the Reborn Forthorthian Army might finally be able to expose Vandarion for the traitor that he is. When backed into a corner, however, Vandarion reveals just how cruel he can be as his rage, his hatred, and his desperation push him to the brink of sanity. In their toughest fight yet, Koutarou and the girls will have old tricks, their friends, and even their own weapons used against them.

Nana comes to Clan, Harumi, and Theia for maintenance, but it turns out each of the girls has something they want to improve on. After Alunaya sees a commercial involving hot spring eggs on TV, he wants to visit a hot spring to try some. He and Shizuka go together with Ruth and Kiriha on a weekend getaway. Sanae and Theia get competitive over a local eating contest, and if there’s food involved, Koutarou and Yurika are never far behind. And then Yurika has to study for an exam?!

Now that Koutarou and company are back from their long journey to Forthorthe, everyone is hoping to settle back down into their normal, peaceful lives. Things are quickly thrown off course, however, when Theia, Ruth, and Clan show up with a little extra baggage and Koutarou suddenly finds himself in the midst of intergalactic negotiations. Has the real alien invasion just now begun? And what’s with the strange voice Sanae keeps hearing? Moreover, what’s got Clan so pensive?

After getting back from Forthorthe, everyone was hoping they could spend their days in peace for a change. But as if the politics of the official Forthorthian invasion weren’t enough, something very strange and very unsettling is starting to happen around Koutarou and the girls. One mysterious disappearance becomes two, and there’s no clear cause or end in sight. Can they figure out what’s going on in time, or will Koutarou end up just like he was in the beginning—alone?

It’s the start of a new school year at Harukaze High. Excitement and change are in the air. Fresh faces abound, and there’s one girl in particular who really seems to get Koutarou’s attention. She looks so familiar, but no one seems to recognize her. Just who could she be? Meanwhile, Clan’s in for a schooling and Kenji’s going to have to learn how to deal with his precious baby sister growing up. Not to mention diplomatic relations between Forthorthe and Japan are just getting interesting...

In this collection of side stories: Clan and Yurika try their hardest in a triathlon in order to earn a special reward from a special someone, Harumi and Maki embark on an unusual journey of self-improvement on an impromptu day off, and... Shizuka and Ruth finally have their fated showdown?! Then, in a very special Harumi feature, we get a glimpse into what life would be like between Harumi and Koutarou if they started dating.

It’s been two full years since Koutarou first started at Harukaze High as a freshman and a battle for his apartment turned his life upside down. A lot has changed since then. His former rivals are now his closest friends, and they’ve even added a few new faces to the group. Revisiting things like the inter-club obstacle marathon during the sports festival as third-years is going to be a wild ride, compounded even further by the danger lurking just around the corner...

In this collection of side stories: Kiriha and Elfaria go toe-to-toe to decide who gets to take care of Koutarou when he gets sick on vacation, the story of how Yurika’s magical training went when she and Nana first met, and a chance date with Maki and Kiriha in a rather meaningful place. Then, in a very special feature, we get a glimpse into what life would be like between Clan and Koutarou if they started dating.

Now that Koutarou and the girls know the remnants of Vandarion’s faction are holding out on Earth, they’ll have to dig deep for a new fight on the home front. Ralgwin is patient and strategic compared to his uncle, and he’s more than prepared to play the long game. He’s already managed to get his hands on a piece of spiritual energy technology that puts him one step closer to the power of Koutarou and company, but he’s willing to play dirty to level the playing field... meaning Ruth’s in danger when a mysterious assassin appears.

After the attack underground, Koutarou and company return to the surface to regroup and plan their next move. They know Ralgwin will continue to come after them as long as he still has a hold on Earth, leaving them little choice but to mount an offensive of their own in an attempt to put Vandarion’s coup to bed once and for all. Fortunately, they have a little extra help on their side with the arrival of Princess Nefilforan, known throughout all of Forthorthe for her military and martial might.

Koutarou and company are left reeling in the wake of Ralgwin’s mysterious disappearance, but he isn’t the only cause for concern anymore. Maki receives an invitation from Rainbow Heart, which brings the whole group to Folsaria. All seems well at first, but intrigue and danger are brewing under the surface in the supposedly peaceful land of magic. An old enemy rears his head after ages, renewing a fight that Koutarou hopes to settle once and for all. Will he be able to claim a definitive victory this time with the girls’ help?

Harumi and Clan take a sentimental tour of Vandarion’s special territory, swapping secrets (and more!) in hopes of better understanding their respective relationships with Koutarou. Theia and Ruth also take a trip down memory lane as they review footage and data from their trip to Earth. Shizuka and Sanae likewise reminisce about the past while doing some spring cleaning. But then it’s time to kick back and cut loose! The whole gang heads to the beach, where the girls get their chance to shine bright!

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?

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?

Koutarou decides to humor the haniwas and Alunaya when they take an interest in RC cars—and Clan’s determined not to be left out! After their fierce showdown, Maki’s in for a surprise encounter with an old friend. Next up, Nana and Kanae team up against their protégés in a very special game of badminton. And finally, with the big trip to Forthorthe right around the corner, the girls all scramble to get ready for their intergalactic journey. There’s so much to buy! Food, bicycle parts... And don’t forget new underwear!

The entire Corona House crew—plus a few new additions—is now on their way to Forthorthe. Unfortunately, their arrival won’t quite be the celebratory homecoming that Theia and Clan had imagined. While they’ve successfully returned with the Blue Knight, he’s only back in the solar system to prevent further tragedy. Ralgwin is somewhere, skulking in the shadows with terrifying new allies, and Koutarou is determined to keep the next would-be dictator from threatening the peace of the universe once again.

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 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!

Koutarou has sunk into despair. He was given the agonizing choice of saving either Fasta or Ralgwin, with the other losing their life. As a result, Maxfern was resurrected, leaving Koutarou at a loss and full of fears. What will be the catalyst for his recovery? The girls of room 106 struggle to reach out to him, but it’s an unexpected friend who pulls Koutarou back from the edge. Once out of his slump, he resolves to take action against Maxfern. In order to find any leads on their enemy, Koutarou, along with Maki and Nana, infiltrates an enemy organization!

The resurrection of Maxfern draws Forthorthe ever closer to war. Before the battle begins, the enemy hopes to strip the Blue Knight of his power by going after the brains behind him—Kiriha, Ruth, and Clan—and shooting the spaceship they’re on! But as the emergency sends Koutarou into panic, he receives a message: “Veltlion if you are watching this, I imagine you’re in the middle of an uproar.” Just what kind of plan have the Blue Knight’s lovely confidants thought up?! The three girls behind the scenes lead the enemy by the nose as volume 46 shines with trickery!

Thanks to Kiriha, Clan, and Ruth’s desperate decoy plan, Koutarou and the others discovered the enemy stronghold. With the newly rebuilt Blue Knight battleship serving as their banner, the Imperial Army launches a large-scale offensive to put a quick end to the war. As the curtains rise, Koutarou’s personal spaceship, which was seriously damaged during the previous war, is revealed and its appearance is truly extraordinary. At last, behold the strongest battleship that Theia, Clan, and all the citizens have been waiting for!