The Unwanted Undead Adventurer Novel Volume 10 was written by Yu Okano and illustrated by Jaian.

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 have some unexpected free time, Rentt and Lorraine decide to take care of other business around the city. They deliver a letter to Abess Elza, meet up with their colorful acquaintance, Augurey, and even seek an audience with a princess, where they learn not everything in the kingdom is as it seems.

As they wait for the grand guildmaster’s return, the three adventurers join together to take on various jobs around the city. But will everything go smoothly, or do more surprises lurk in the shadows?

The Unwanted Undead Adventurer Novel Volume 11 was written by Yu Okano and illustrated by Jaian.

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 more to the situation than meets the eye. After a certain surprise, Rentt finds himself embroiled in the criminal underworld, where his every decision affects not just himself, but also Lorraine, the Grand Guildmaster of Yaaran, and even the kingdom’s royal family!

The Unwanted Undead Adventurer Novel Volume 12 was written by Yu Okano and illustrated by Jaian.

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 Alize under Isaac's guidance. Despite her newfound vampiric abilities, she remains an Iron-class adventurer; surrounded by numerous talented individuals, she struggles with self-confidence. Her prescription? Adventure! As Rentt journeys to Maalt, apprehensive of the trials awaiting him, his junior in all things adventuring and vampiric faces her own trials.

The Unwanted Undead Adventurer Novel Volume 13 was written by Yu Okano and illustrated by Jaian.

Rentt Faina accepts a request to defend a small village from a band of marauding skeletons. What should've been a routine job turns dangerous when Rentt tracks down their source—and comes face to face with a powerful skeleton knight! But what has caused these monsters to evolve? The answer may lie with the strange small cup Rentt found at the battle site, but there's barely any time to investigate: there's always work to do for an adventurer! Clope the blacksmith has decided to face the ghosts of his past and enter a blacksmithing contest, and he wants Rentt to guard him on the journey. To top it all off, Rentt has to prepare for the Silver-class Ascension Exam.With so much work on his plate, it'd be nice if Clope's request turns out uneventful. But our intrepid undead adventurer is rarely so lucky…