The Duchy of Brunhild is abuzz with confusion as a great airship appears in the sky, bringing with it a group of curious Gollem engineers! But what do these mysterious Seekers want with Yumina's white crown? And just what secrets lurk within the ancient ruins of Gandhilis? More importantly, will Yakumo ever come home? Hold fast for a tale of swords, sorcery, and mechanical marvels!

A world-class magic train route has been constructed between Belfast and Regulus, so Touya brings the whole family along on the inaugural ride! But while he enjoys his leisurely trip, things aren’t going so well for his wayward children, who remain scattered across the world. Which one of them will make it to Brunhild next? What will they bring back with them? Will the wicked devout continue their vile machinations for much longer? And the most important, burning question on the minds of Touya’s wives: will Lu finally be able to bake a cake with zero calories?! It’s full steam ahead in this tale of swords, sorcery, and sorcerous swords!

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?!

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!

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.

The time has come for the showdown against the wicked god. There’s just one problem... Touya and company need to purify the venom surrounding Isengard first! But fret not, Uncle Kousuke is here to help. He just needs a little assistance nurturing a very special sapling. Meanwhile, Touya thinks back to Earth and finds his thoughts returning to the family he left behind. The final battle begins at last, ringing in a story of swords, sorcery, and very unhelpful Unicorns.

The conflict with the wicked god has come to an end, and Touya now presides over a unified planet. Peace may yet return to the world, but it's still far from paradise! Touya must resolve a centuries-long misunderstanding between two feuding nations, deal with a new matter of interest in the divine realm, and handle whatever small national matters come his way, all while planning for his long-awaited weddings! Sit back and relax before a story of swords, sorcery, and political intrigue!