Stalwart as ever, 16-year-old Mochizuki Touya heads off to the far eastern land of Eashen with his party in tow. For what purpose? The Matriarch of the Fairy Clan wishes to delve into some ancient ruins, of course! But it's never quite that simple for Touya and his friends, oh no. The party is thrust into the midst of a clash between the warlords Takeda Schingen and Tokugawa Ieyahsu, while a nefarious necromancer makes his move in the shadows... Throw in a Gynoid or two, an ancient legacy, another ridiculous summoning pact, and you've got yourself a brand new recipe for disaster! Once more the sun rises upon an epic tale of sorcery, smartphones, and floating cities!

Undeterred by his untimely death on Earth, 15-year-old Mochizuki Touya continues to meander around in another world! After a series of misadventures, the young man has assembled a motley crew of adventurers including the timid mage Linze, the feisty brawler Elze, the ever-hungry samurai Yae, and even the young archer Yumina, heir to the Belfast throne. Together with his party (and a divine white tiger), Touya sets his sights on the horizon, heading for the demi-human kingdom of Mismede! But all is not what it seems... the beastman king issues a personal challenge, and a black-scaled dragon could soon spell out Touya's doom! The curtains lift once again on an epic tale of sorcery, smartphone apps, and... gunblades?!

After a series of troubling events, Mochizuki Touya takes some much-needed downtime. The fate of two worlds still hangs in the balance, he needs to secure more allies in the Reverse World, and Yula and the wicked god continue their dark machinations in the background, but that doesn't mean that our hero can't take a little time for romance and relaxation. But unbeknownst to our crew, another god may have set his eyes on the mortal realm... Lovers waltz and blades clash, unveiling a story of swords, sorcery, and fun in the sun!

16-year-old Mochizuki Touya has it all. Grand Duke of an upstart nation, inventor of goods ranging from hula hoop to caramelized popcorn, administrator of Babylon, and pilot of the Anti-Phrase Frame Gears. The western nations love him... but darker machinations unfurl in the far east. Yulong, the glorious Empire of Heaven, regards Touya with envious eyes, brazen enough to send assassins into Brunhild! To make matters worse, the mysterious young girl known as Sakura seems to have a connection with these dark assailants. In the background, dark forces gather. Something big approaches. Something far greater than anything Touya has ever faced before. Brace yourself... for a tale of swords, sorcery, and absolute calamity.

Once the timequake starts, it doesn't stop! Right when poor Touya's adjusting to being a dad, he's bombarded with more children! What kind of mischief will these time-travelling tykes get into next...? And what dark machinations might unfurl while our hapless hero is distracted with paternal precautions? Keep on reading for a story of swords, sorcery, and parental peril!

The time has come at long last. Touya's set to get married to his nine blushing brides. The invites have been sent, the food is all accounted for, and the entire nation of Brunhild trembles with anticipation. But will he make it through the big day unscathed? Not if his divine retinue has anything to say about it! And of course, there's the small matter of his honeymoon... Bringing nine spouses through a spatial tear for a vacation on planet Earth sounds like a novel enough idea. What could possibly go wrong? Wedding bells ring, signaling a tale of swords, sorcery, and smiles!

Spring has sprung in Brunhild, and Mochizuki Touya continues to live his happy-go-lucky life. Flowers bloom, parties come and go, and everything seems just about fine... But wait! The mysterious pink-haired girl, Sakura, is identified by someone. Just what could this mean for her? Who exactly is Farnese Forneus, and what is her connection to the overlord of Xenoahs? But wait, a more pressing issue is the final piece of Babylon, and the remarkably twisted secret it has in store for our heroes... Set a very cautious course for a tale of swords, sorcery, and advanced cryogenics!

16-year-old Mochizuki Touya continues everyday life in his new world, well aware that it could all come tumbling down at any moment. He's the budding administrator of Babylon, the fledgling grand duke of Brunhild, and now he's a... mecha pilot? Desperate to find a way to halt the incoming Phrase onslaught, Touya makes a mad dash for the Hangar of Babylon, hoping it can give him the edge he needs. What he finds is the Frame Gear, an ancient humanoid fighting machine! Join Touya and his ever-growing band of wives as they tap into their mechanical sides. All systems standby for a tale of swords, sorcery, and oversized wrenches.

Touya may be back from his honeymoon, but love's still lingering in the air! Will poor Endymion cope with being part of an alien ménage à quatre? Who else might need to be matchmade in the wide open world? With the deal sealed on his own romances, Touya's finally free to stick his nose into the love lives of those around him... but at what cost? Meanwhile, a ripple and quake begin to rip through time, revealing the silhouettes of a far-flung future. Just what... or who... may emerge from the rift? Find out in this riveting tale of swords, sorcery, and progeny!

Mochizuki Touya has no time to rest. The fate of two worlds hang in the balance, after all. The Metal Devils, guided by Yula and seemingly supported by two mysterious twins, are on the rampage... They've mercilessly targeted the souls of people in both the world Touya knows, and the Reverse World! Armed with his new Frame Gear, Reginleif, will Touya be able to stop the malignant machinations of a wicked god? Fissures in space begin to crack, revealing a story of swords, sorcery, and a corrupted knight!