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Yu Okano's Latest Book

Newest Release

  • Bibliography:
    27 Books
  • First Book:
    May 2018
  • Latest Book:
    October 2024
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Book List in Order: 27 titles



  • Rentt Faina, a twenty-five-year-old adventurer, has been hacking away at monsters for a decade. Without much talent for the job, Rentt finds himself stuck hunting slimes and goblins for meager amounts of coin every day. Little does he know, all this ...



  • The craving for human flesh! Are Rentt's inhumane tendencies out of control!?Having awoken in the Water Moon Dungeon as a Skeleton after being consumed by a dragon, Rentt has finally obtained a body with some flesh on it, all thanks to the phenomenon...



  • Vampire hunter Nive Maris had rained Holy Fire down upon Rentt, the Undead adventurer, to prove he was a Vampire. But her plan only proved that he wasn’t a Vampire at all! When Lorraine suggested that Rentt's divinity may have been the reason t...



  • Rentt the undead adventurer arrives at his hometown of Hathara along with Lorraine, a scholar and sorcerer. It’s his first visit in some time, and the village celebrates with a welcoming banquet. However, during the banquet, Rentt disappears. Lorra...



  • After Rentt senses something wrong with his familiar, Edel, he and Lorraine leave Hathara and return to the city of Maalt. There they find the city on fire and crawling with thralls. Rentt finds Edel safe beneath the orphanage and learns through him ...



  • Rentt Faina, a twenty-five-year-old adventurer, has been hacking away at monsters for a decade. However, without much talent for the job, Rentt finds himself stuck hunting slimes and goblins for meager amounts of coin every day. Little does he know, ...



  • It’s been ten years since Rentt Faina, a luckless Bronze-class adventurer, set his eyes on becoming Mithril-class. Unfortunately, he finds himself helpless when confronted by a legendary dragon in the Water Moon Dungeon...and is summarily eaten...



  • Rentt Faina has successfully overcome the menacing tarasque standing between him and the Dragon Blood Blossoms he seeks. But then, deep in the Tarasque Swamp, a well-dressed man appears before Rentt, offering him a quest on behalf of the revered Latu...



  • With the help of Lorraine, Isaac, Laura, and the rest of his companions, Rentt defeats the vampire Shumini after he attacks Maalt. However, in order to take control of the new dungeon, Rentt has to turn Rina into a vampire and make her his familiar. ...






  • Rentt Faina has successfully overcome the menacing Tarasque standing between him and the Dragon Blood Blossoms he seeks. But then, in the depths of the Swamp of Tarasque, a well-dressed man appears before Rentt, proffering a quest of his own on behal...



  • Rentt Faina, undead adventurer, reaches the next stage of Existential Evolution and becomes a lesser vampire!Now short on funds, Rentt sets off to retrieve items necessary to craft equipment for his disciple, Alize. He heads to the New Moon Dungeon w...



  • By drinking a vial of Vampire blood, Rentt Faina, Undead adventurer, successfully achieved his next stage of Existential Evolution and has become a Lesser Vampire! Rentt, now short on funds, sets off on a journey to retrieve items required to craft e...



  • Now that they can travel by teleportation circle, Rentt and Lorraine visit Vistelya, the capital of the Kingdom of Yaaran. Using Lorraine's magic to hide his identity, Rentt decides to check out the guild headquarters. While viewing the job board the...



  • Rentt Faina, the undead adventurer, agrees to take on a request from the Latuules, a highly influential yet mysterious family in Maalt. There’s just one complication—in order to actually meet with them, he has to find his way through a gi...



  • Now that they can travel by teleportation circle, Rentt and Lorraine visit Vistelya, the capital of the Kingdom of Yaaran. Lorraine uses magic to hide their identities, and Rentt checks out the guild headquarters. There, the duo gets involved wi...



  • Thanks to Laura Latuule, Rentt achieves the next stage of evolution, and is reborn as a vampire! He returns to Maalt's Second Orphanage, both to check on Sister Lillian's health and to ask if he and Lorraine can take on Alize as an apprentice.Little ...



  • Tasked with picking up the grand guildmaster of Yaaran and bringing them to Maalt, Rentt and Lorraine travel to Yaaran’s capital, Vistelya, only to find the grand guildmaster is out and won’t be back for a few days. Now that Rentt and Lorraine ha...



  • The last time Rentt saw vampire hunter Nive Maris, she warned him that vampires would soon attack the city of Maalt. Rentt begins to prepare for that possibility by collaborating with the adventurer's guild, but Lorraine suggests he first find t...



  • Following their fortunate encounter with the village girl Ferrici, Rentt’s party finishes up the rest of their guild requests much more smoothly than expected. Even so, they know that they can’t afford to let their guards down yet -- the mysterio...






  • The undead Adventurer returns home, but trouble blocks his path!Rentt finally sets out for his home village of Hathara with Lorraine. On the way, they encounter a horde of zombies and meet Hilde, the Gold-class adventurer tasked with destroying the u...



  • Rentt and Lorraine are tasked with picking up the grand guildmaster of Yaaran and escorting them to Maalt. The duo travels to Yaaran's capital, Vistelya, only to find the grand guildmaster is out and won't be back for a few days. Now that they h...



  • After untangling themselves (well, mostly) from the series of complicated messes that ambushed them in the royal capital, Rentt and Lorraine finally head back to Maalt with Grand Guildmaster Jean Seebeck, the man Wolf asked them to retrieve. Meanwhi...



  • Noah and his fluffy companions have escaped from the Purgatory Forest at last. As they make their way into civilization, they rescue a young noblewoman named Katarina, who quickly sees that Noah is more than he claims to be. Through Katarina’s patr...



  • Rentt and Lorraine’s search for the roots of his divinity brings them to Rentt’s childhood home of Hathara, and the nostalgic setting evokes memories of his past. Just as a harrowing encounter with a dragon set him upon the path of undeat...



  • After meeting Ferrici, Rentt and his party manage to wrap up their guild requests without a hitch. But they can’t let their guards down just yet, for the mysterious third assassin is still out there, waiting to strike!Worse yet, there’s m...



  • After accepting a plea for help to save a small village from marauding skeletons, Rentt stumbles into much more than he bargained for while searching for their source. There’s almost no time to dig into his new discoveries, however -- back in Maalt...



  • Now that the tumultous events in the royal capital are over with, Rentt and Lorraine can finally complete Wolf’s request, and the duo prepare to return to Maalt with Grand Guildmaster Jean Seebeck in tow. Meanwhile, Rina has been training with ...


Frequently Asked Questions (FAQ)

Yu Okano has published 27 books.

Yu Okano does not have a new book coming out soon. The latest book, The Unwanted Undead Adventurer: Volume 12 (Light Novel), was published in October 2024.

The first book by Yu Okano, The Unwanted Undead Adventurer (Light Novel): Volume 1, was published in May 2018.

No. Yu Okano does not write books in series.