Seiichi Takayama – illustratör

Some urban legends are best left untested!Yuuto Suoh gets more than he bargained for when he joins his childhood friend Mitsuki Shimoya in testing out an urban legend. When he uses his phone to take a picture of himself with the local shrine’s divine mirror, he is whisked off into another world – one heavily steeped in the lore of the old Norse myths. Using his knowledge gained from school and from his solar-powered smartphone, he has the chance to bring the Wolf Clan, the same people who cared for him, to prominence, all while earning the adoration of a group of magic-wielding warrior maidens known as the Einherjar.

With Yuuto back in Yggdrasil, now it’s his turn to retaliate!At last, our hero has returned to Yggdrasil. Having turned Steinþórr’s army away with his “Empty Fortress” strategy, Yuuto sets out to attack and drive off the invading Panther Clan immediately.“I can’t afford to dawdle at a time like this.”Back from Japan with new tools and tactics in hand, it’s time for Yuuto to raise the banner of counterattack, in this intense whirlwind of a ninth volume!!

Yuuto gets married?! And at last, the veil is lifted from the mystery of Yggdrasil!!Time flows onward in Yggdrasil, and it is the height of summer. When Yuuto returns victoriously to his capital city of Gimlé, he is greeted by the fervent cheers of his citizens and the smile of his beloved Mitsuki.With the Panther Clan defeated, there is a brief time of peace, but no shortage of issues: How will Linnea fare against the rising food supply problems? What is the cause of Mitsuki’s spate of poor health? Elsewhere, the patriarchs of the Flame Clan and the Lightning Clan meet in a fearsome clash!! The world itself reaches a key turning point in this 10th volume.

In the midst of Yuuto and Mitsuki’s wedding ceremony, everyone is shocked to learn of a new imperial decree, a subjugation order, declared under Divine Empress Rífa’s name, calling for the Steel Clan’s complete destruction. As unease spreads throughout Yuuto’s allied clans, Sword Clan patriarch Fagrahvél is steadily preparing his forces to surround and invade them from all sides. How will Yuuto manage to overcome an alliance led by the empire’s strongest? The oncoming drumbeats of war echo throughout the land once more in this eleventh volume!

A storm of threats... and a hail of marriage proposals!With the defeat of the Hoof Clan''s patriarch Yngvi, Yuuto Suoh has sent a shockwave through the power balance of Yggdrasil.Linnea proposes marriage to him, but he cannot hide his feelings for Mitsuki, who is waiting for him back in the modern world. In the midst of this dilemma, the young patriarch of the Lightning Clan Steinþórr suddenly appears during the victory celebration, leading to a touch-and-go confrontation with Yuuto. As the threat of war once again looms on the horizon, the twin princesses of the Claw Clan suddenly demand to become Yuuto''s wives, as well?!

From weakest to strongest: A loser rises to become a sovereign!As the patriarch of the Wolf Clan, Yuuto is now a figure of undeniable power and authority. But the Yuuto who found himself transported to this world of Yggdrasil two years earlier was nothing more than an immature boy. He grew as a person thanks to those around him, such as the warrior maidens Felicia and Ingrid. And in particular, there was a reliable, older brother figure...In a world ruled by strength and the law of the jungle, just how did Yuuto come to be the sovereign ruler of the Wolf Clan? At last, the story will be told: The Master of Ragnarok''s "Episode Zero"!

Cheat versus cheat!! A showdown between Yuuto and his sworn brother!As Yuuto continues to introduce reforms for the sake of the Wolf Clan’s future, he finally begins in earnest his search for a way back to Mitsuki in the modern era.When he visits a hot springs for a bit of rest and relaxation, Jörgen launches “Operation: Make Him Stay With a Honey Trap!” Yuuto is momentarily shaken, but maintains his firm resolve.But then the nomadic Panther Clan chooses that time to invade his clan’s sister nation, the Horn Clan. And leading the Panther Clan is the man who fled the Wolf Clan one year earlier: Yuuto''s sworn older brother, Loptr!Will the conflicted Yuuto be able to raise an army against his family?!

“Father, may I beg you for a favor?”It has been one month since the Panther Clan''s invasion. Having repelled their army and returned to the Wolf Clan capital victorious, Yuuto enjoys a few moments of respite in the early days of winter, thanks to the warm kotatsu he''s had specially prepared.But even times like these are far from uneventful. The twins Al and Kris attend a school and quickly stir up trouble; Sigrún departs on a mission to put down bandits in the countryside and encounters a new and powerful foe; and in the modern era, Mitsuki gains an unexpected clue to the mysteries of Yggdrasil...It''s the fifth volume of the story of fantasy and military conquest that''s garnering more and more attention!

The Black Wolf versus the Wild Tiger!!The girl who suddenly appeared before Yuuto turns out to be none other than Sigrdrífa, the reigning divine empress of the land of Yggdrasil. Equally shocking for Yuuto is the fact that she bears an uncanny, twin-like resemblance to his childhood friend Mitsuki.As she is traveling incognito, Yuuto welcomes her to stay in the Wolf Clan palace for the time being, and he soon learns information from her that may hold the key to his returning home to the modern era. But just as Yuuto’s hopes are rising, the Lightning Clan attacks once again, led by the Battle-Hungry Tiger Steinþórr!Yuuto moves to intercept them with a new clever scheme, but...?!

At last, Yuuto returns to the modern world. What fate awaits the Wolf Clan without its leader?!Due to Sigyn’s spell, Yuuto suddenly finds himself returned to the modern world he came from. Though he is joyous to reunite with the woman he loves most, his childhood friend Mitsuki, he is also fraught with worry over the “family” he left behind in Yggdrasil.Meanwhile, the Wolf Clan army falls into turmoil with Yuuto’s disappearance. As their enemy the Panther Clan takes advantage of this to launch a great assault, Felicia and the others confront them desperately, resolved to do-or-die!The time has come for Yuuto to make his most important decision in this 7th volume!!

Mitsuki goes to Yggdrasil alone?!In order to protect his new family, the Wolf Clan, Yuuto has decided to return to Yggdrasil with Mitsuki, now his sworn partner for life. The two of them manage to deliver the news to their respective families, and at last the night of the summoning ritual arrives.However, something strange and unexpected occurs! Due to interference by Sigyn, the Panther Clan''s master of magical arts, Mitsuki is sent to Yggdrasil by herself.The two lovers are once again separated across time and space; what fate awaits them?

Following the decree of an imperial subjugation order against the Steel Clan, five major clans have joined together in an unprecedented military alliance. Fagrahvél, patriarch of the Sword Clan, commands the army invading from the east, and his forces total a staggering thirty thousand! With sheer numbers that outstrip even those of the Steel Clan, as well as a number of powerful einherjar fighting in his ranks, Fagrahvél attacks the eastern border fortress at Dauwe.Meanwhile, Yuuto is still in the middle of returning from Lightning Clan territory in the southwest...Faced with an invasion on a scale the likes of which he’s never faced before, can Yuuto come up with a strategy that will break through this crisis?! The popular isekai fantasy novel series continues in this battle-packed 12th volume!

With his victory over the power of Fagrahvél''s rune Gjallarhorn, the Call to War, Yuuto has forced the Anti-Steel Clan Alliance Army into retreat. Even as the cheers ring out commemorating this magnificent achievement, he does not let up in the slightest. With great decisiveness, Yuuto orders Sigrún and the Muspell Unit to pursue and destroy their chain of command. The young conqueror continues on his grand campaign, with Yggdrasil''s fate in the balance, in this 13th spectacular volume of the ever-popular isekai fantasy series!

Having defeated the Anti-Steel Clan Alliance Army and freed Rífa from the clutches of Hárbarth, Yuuto immediately advances upon the Holy Capital of Glaðsheimr without regard for his army’s fatigue. For Yuuto, who has foreseen the complete destruction of Yggdrasil, marrying Rífa and gaining the title of þjóðann are things he must do at any cost. However, awaiting him there is a man who has not yet given up on his long-held ambitions. How will it all end? Find out in this shocking 14th volume of the ever-popular isekai fantasy series!

Hárbarth has finally been defeated—though at the cost of Rífa’s life. Yuuto, now faced with the imminent destruction of Yggdrasil, has no time to mourn and must move forward with his plans to save the continent’s people. As the new þjóðann, he has issued a decree mandating that all patriarchs fall under his banner. However, Oda Nobunaga, patriarch of the powerful Flame Clan, defiantly continues his march upon the Holy Capital... The epic battle between the two summoned patriarchs is about to begin! Can Yuuto’s cheat abilities defeat the legendary warlord of old? The final showdown between the two mighty leaders begins in this 15th volume!

Yuuto has forced the Flame Clan, led by the legendary Oda Nobunaga, to call off their assault of the Holy Capital and make their retreat, though not without him suffering a painful loss—the death of his trusted general and friend, Skáviðr. Driven by his burning desire to save the people of Yggdrasil from their impending doom, Yuuto moves his forces eastward. However, in the eastern lands of Jötunheimr lies the powerful Silk Clan, overseen by its beautiful but tyrannical leader, Empress Utgarda, who rules through a combination of fear and cunning. Yuuto enacts his will upon the entire continent of Yggdrasil in this 16th volume of the long-running hit fantasy series!

Yuuto and the Steel Clan have little time to celebrate their victory against the Silk Clan as the Flame Clan Army resumes its advance. Once again, Fort Gashina is the center of the conflict. The Horn Clan Army under Rasmus attempts to hold the fort in Yuuto’s absence. Can Yuuto, with his cheats, defeat the legendary Oda Nobunaga, one of history’s greatest strategists, once and for all? The long-awaited Battle of Yggdrasil begins in this 17th volume!

Yuuto and the Steel Clan seek to save the people of Yggdrasil, but they face their greatest obstacle in the form of the Flame Clan’s Nobunaga, the would-be conqueror of the continent. As the two clans come to blows, Linnea holds off an assault from Shiba, the Flame Clan’s greatest warrior, at the Wolf Clan capital of Iárnviðr. Faced with possibly the most powerful enemies it has ever encountered, can the Steel Clan protect its people from the threat of the Flame Clan?! As the destruction of Yggdrasil begins, the greatest battle in its history unfolds... Find out more in this 18th volume!

The great earthquake continues to wreak havoc upon the battlefields of Yggdrasil. Witnessing the collapse of the Gjallarbrú Fortress, Nobunaga wastes no time ordering a full assault, forcing the Steel Clan to fight a perilous retreating battle. Meanwhile, Sigrún, swept away by the surging waters of the Körmt River, finds herself forced into a deadly duel with Shiba, the mighty general who had defeated her just months earlier. Faced with their greatest threat to date, can Yuuto find a path to survival for the Steel Clan?!

In the opening battle at the Holy Capital, Yuuto and the Steel Clan successfully repel the Flame Clan forces being led by Vassarfall. That victory, however, is short-lived, as the fiendishly clever Nobunaga responds with a novel tactic. Yuuto must buy enough time to finish evacuating the continent—and without his most trusted fighter, Rún, at his side! The final battle for control of Yggdrasil heats up in this twentieth volume!

The intense clash for the capital grows ever fiercer! Now that Nobunaga is hell-bent on avenging his most loyal retainer, will Yuuto be able to stay one step ahead of the general? The dangerous dance continues between the two patriarchs, and in the heat of it all, a rather unexpected fighter awakens to their true potential...

The battle for Glaðsheimr—and all Yggdrasil—nears its climax. Who will be left standing when it’s over?

With the fall of Glaðsheimr, the curtain temporarily closes on the greatest battle Yggdrasil has ever seen. Using the chaos of the collapse to escape, Yuuto and the Steel Clan Army lay low and observe the Flame Clan’s actions, but what they witness is none other than Nobunaga’s own surrender! Could it be a trap, or...? Doubtful, Yuuto heads to the negotiation table once again... The long-awaited conclusion of the battle between the Steel and Flame Clan awaits in this 22nd volume!

Yuuto and the rest of the Steel Clan have departed the sinking Yggdrasil for the New World, where they’ll start over from scratch. As the group is adjusting to their new environment, the natives of the land attack—but with all the experience the reginarch Yuuto has under his belt, even a massive army is no match for him! Meanwhile, Ingrid’s relationship with Yuuto remains at a standstill because she can’t bring herself to be honest about her feelings. Worried the other women might leave her in the dust, she finally decides to take action! And just what are Yuuto’s children up to? With a new world comes new beginnings in this 23rd volume!

Rumblings of rebellion against the Steel Clan in the New World?! The tyrant reginarch who denied his subjects the convenience of modern culture and sowed seeds of oppression across the land meets his end at last…while elsewhere, Suoh Yuuto enjoys his newfound freedom. Now trying his hand in the world of commerce, he and his family set off on a new adventure through Cyprus and other lands to reach his final destination. The Master of Ragnarok concludes here, completing the circle of fate at last!

Some urban legends are best left untested! Yuuto Suoh gets more than he bargained for when he joins his childhood friend Mitsuki Shimoya in testing out an urban legend. When he uses his phone to take a picture of himself with the local shrine’s divine mirror, he is whisked off into another world – one heavily steeped in the lore of the old Norse myths. Using his knowledge gained from school and from his solar-powered smartphone, he has the chance to bring the Wolf Clan, the same people who cared for him, to prominence, all while earning the adoration of a group of magic-wielding warrior maidens known as the Einherjar.

Poor Yuuto just can''t get a break. He''s got girls from every clan flinging themselves at him to establish an alliance, when all he wants to do is get back to his one true love at home. Of course, it would be easier if rival clans weren''t sending spies and loudmouthed warriors his way as well...

Strategy versus power: The showdown with Steinþórr and the Lightning Clan approaches!

Yuuto has finally come clean with Linnea about why he can’t marry her. But just as it seems they’ve reached an understanding, troubling new information arrives: The Lightning Clan is preparing to launch an invasion! Steinþórr’s army is fierce, and the man himself possesses monstrous inhuman strength. Yuuto has reliable allies like Sigrún and Skáviðr, and he has his “cheats” — tactics and technology he copied from future history. But will that be enough for the Wolf Clan to prevail against a foe said to be invincible?

Yuuto''s new Nordic life isn''t the Hygge-filled heaven he may have hoped for. The Wolf Clan face continued challenges from outside, and a tenuous grasp on control by the benevolent, ageing patriarch within. As past memories resurface, Yuuto finds that conquering the discomforts of his modern upbringing could be the source of salvation for everyone involved - but can he turn that information into iron before the next battle begins?

Enough is enough! Yuuto knows drastic actions are necessary to save the Wolf Clan from destruction - but can he convert enough people to his side in time?