Nori Kazato – författare

In order to find out the cause of water pollution in the Demon Realm, Leo and Mernes head off to investigate Lake Amia and its resident water spirit, Undine. But one thing stands in their way—the legendary “Demon King Slayer,” who swears to protect Undine at all costs! Just who is this mysterious foe?! Meanwhile, Demon Queen Echidna puts her plan into motion, donning a perfect disguise to confer with Leo about her troubles…

For the Hero, Leo Demonhart, saving the world isn’t all it’s cracked up to be. After he vanquishes Demon Queen Echidna, the “grateful” people would rather give him the stink eye than show any respect. Now he’s come to Echidna’s castle with résumé in hand, but his old foe isn’t exactly fond of the guy who trounced her forces. It’s up to Leo to use every trick he knows and get in her good (evil?) graces—a cushy gig as a minion of darkness is on the line!

Hiding his identity as the Hero, Leo Demonhart has managed to sneak his way into Demon Queen Echidna’s forces…but he has his work cut out for him. When faced with an assassin who struggles to communicate and a warrior who doesn’t understand how to educate others, Leo knows the best solution is for them to take a page out of his long, long book. After all, he’s got a whole lot of experience under his belt, and his history stretches back further than anyone could have ever guessed…

The Hero Shall Protect Humanity...No Matter the Cost. Leo Demonhart has finally unveiled his true identity as the Hero to the Demon Queen Echidna, and his confession comes with a shocking revelation-he is the guardian of a Philosopher’s Stone. If Echidna wishes to obtain the stone and bring peace to her homeland, she’ll have to get past Leo first. In a decisive battle against the man who has quit his mission of protecting humanity, Echidna and the Four Great Guardians face a momentous choice: Must they put an end to the Hero once and for all?

The Hero Is Employed by the Demon Queen…and He Still Has to Conquer a Dungeon?!Now that he’s officially joined the Demon Queen’s army, Leo is ready to take on any challenge—except, maybe, a thirty-floor dungeon set up by Shutina’s disciple and Leo’s least-favorite curse-maker, Canaan. But Shutina’s powers of persuasion (?) are hard to beat, and Leo is dragged off to face a collection of tricks and traps that might just be a little too hot to handle! As he descends the floors, though, little does he realize he’s not the only member of the Demon Heart series left in the world, and one of his siblings may be at work behind the scenes…

The Hero’s First Step toward a Touching Reunion Is…a Fight to the Death?! Leo has finally uncovered the truth behind Canaan’s dungeon and the mass blackening of dragons-his long-lost brother Virgo is to blame. And when Leo’s battle-hungry sibling challenges him to a fight by threatening a human kingdom, the former hero has no choice but to accept. He can’t afford to get sentimental, however-when faced with Virgo’s hyper-regeneration powers, Leo must find a way to protect the kingdom and save Canaan…even if he has to take down his brother to do it.

The Hero Faces a New Formidable Foe—Environmental Degradation!The Demon Queen and her trusty aide, former hero Leo, have returned to the demon realm…only to find a barren, polluted wasteland on the verge of destruction. The crops aren’t growing, the water is contaminated, and the realm’s demonic citizens are fed up. To prevent things from getting even worse, Leo must roll up his sleeves and start working to solve this environmental crisis! And as he toils away in the fields, the story of another Demon Heart sibling comes to light…