The story of *Mushoku Tensei* Volume 12 unfolds in the city of Rapan, particularly in the underground labyrinth where Zenith is being held captive. The narrative cleverly revisits earlier plot points, most notably the book that Rudeus received from Sylphie in Volume 8. This book turns out to be incredibly valuable in deciphering the teleportation traps since it happens to describe the very labyrinth in Rapan. While this could have easily come across as a forced plot device, two factors prevent it from feeling contrived: first, Rudeus found the book by following the instructions of the Man God, suggesting that he was deliberately guided to this outcome for reasons that are yet to be revealed. Second, the book is only helpful for navigating the initial levels of the labyrinth, leaving the final puzzle and boss fight for Rudeus and his companions to solve on their own. The book aids them in facing the deadliest challenge, the Hydra, but it doesn’t remove the need for them to overcome significant obstacles along the way.
Two key relationships take center stage in this volume, both of which have profoundly shaped Rudeus as a character: his relationships with Paul and with Roxy. Rudeus’ interactions with Paul are bittersweet from the outset. Though they finally reunite after a long time, Paul never gets the chance to fully express his pride in what Rudeus has accomplished. Instead, he grapples with his own sense of failure as a father, feeling burdened by his reliance on his son. This is underscored by several conversations where Paul laments his weakness and elevates Rudeus by making the heart-wrenching request that Rudeus sacrifice his own life to save his mother—not because Paul doesn’t love him, but because he trusts no one more. This dynamic culminates in a poetic way when Paul ultimately does exactly what he asked of Rudeus: he sacrifices his life to save his family, Zenith and Rudeus. This selfless act has a profound impact on Rudeus, the other characters, and the readers, forming the emotional core of this volume.
This chapter is a moment of disillusionment and sobering reality for Rudeus, the other characters, and the readers, even more so than the turning point in Volume 6. Until now, everyone had grown accustomed to Rudeus being virtually unstoppable once he set his mind on something. Most of his challenges were internal, dealing with his psychosocial issues, but when it came to raw power or combat skill, he could overcome any obstacle. The only exception was Orsted, but even after that, Rudeus not only learned how to intercept spells but continued his rise at the university: he tamed Linia and Pursena, defeated the academy’s strongest magician "Fitz" in one strike, dealt massive damage to the seemingly indestructible Badigadi, bested Luke in swordsmanship, and was hailed as the invincible super magician—reinforced by numerous comments about his endless mana reserves. Neither Rudeus nor the other characters anticipated that this mission would put him in real danger. Rudeus assumed he’d just pop over to Rapan, save Zenith, and return in time for the birth of his child—the question was never *if* he would succeed, but *when*. Except for Sylphie, who alone worried about him, the other characters didn’t act as if Rudeus was in any real danger. Even when he arrived in Rapan, everything seemed to go smoothly at first: he quickly solved the teleportation traps thanks to Sylphie’s book, rescued Roxy, and found the path to the final chamber where Zenith was held. But precisely because of this certainty, the ending hits harder—Rudeus fails on almost every level: Paul is dead, Zenith is saved but barely alive, and he himself loses an arm. This outcome is devastating for him, the other characters, and the readers.
For Rudeus, there’s an additional layer of despair beyond the immediate shock of loss. For the first time, he has to confront the possibility that he’s failed just as he did in his previous life. He compares his current relationship with Paul and Zenith to his past life and comes to the shameful conclusion that he’s once again failed to show his parents the appreciation they deserved. While it could be argued that Volume 7 marked Rudeus’ emotional low point, he still tried to make the best of his life, never losing sight of what he had achieved in this new life, largely thanks to his thoughts of Roxy. But now, in Volume 12, nothing of that remains: he sees his second chance as a failure because he didn’t learn from his first life, and this realization is at the heart of the tragedy surrounding this moment. This tragedy becomes even more poignant when Rudeus, through his grief and the loss of his parents, finds an emotional clarity he’s been searching for and finally realizes that he truly loved Paul—something he’s finally able to admit at Paul’s grave. For once, he expresses this from the depths of his heart, without any pretense or rehearsed reactions, unlike how he often interacted with his parents. In a poetic way, Rudeus says goodbye to Paul while also stepping into his role—he’s now a father himself, determined to embody the qualities he saw and felt in Paul. In this way, Paul lives on in Rudeus, guiding him as a role model on the difficult journey ahead. The emotional depth of this resolution makes it perhaps the most moving episode of the entire series so far.
On the other hand, I have more mixed feelings about the other major relationship in this volume, between Rudeus and Roxy. On one hand, there are some beautifully composed elements here that create a lyrical effect: Roxy pulls Rudeus out of his depression, just as she did in Volumes 1 and 7; she feels deep shame over her feelings and is comforted and accepted into the family by Sylphie; and when Rudeus saves her, she finally sees him not just as her student. The characters’ reactions are all organic and plausible: Norn, grieving deeply over Paul’s death, has emotional outbursts at the thought that Rudeus might have enjoyed himself with another woman instead of giving his all to the mission; Sylphie, who had previously indicated she would accept Rudeus taking other wives, surprisingly justifies this with his faithfulness, believing that after sex, he would take care of the woman rather than abandon her; Roxy, torn between her selfish feelings for Rudeus and her altruistic desire not to intrude on his relationship; Rudeus, who has harbored strong feelings for Roxy since Volume 1, caught between these feelings and his loyalty to Sylphie; and Elinalise, who is constantly weighing the happiness of Rudeus, Sylphie, and Roxy, reacting differently depending on the situation and trying to find a solution that doesn’t bring misery to anyone, even advising Rudeus to enter into this second marriage. All of this is well-executed, but what bothers me is how sex is used as a sort of therapy for Rudeus, which then ties him to Roxy. Their relationship was previously less of a romantic one and more defined by mutual respect. Roxy had always been a moral and mental support for Rudeus without the need for sex, and I thought this special mentor-student dynamic was what made their relationship unique. I do think there was a plausible way for them to become a romantic couple, but for me, it would have worked better if the sequence of events had been different: Roxy supports Rudeus mentally, helps him out of his dark place, and then he falls in love with her, leading to sex. As it is, it feels a bit like Rudeus lost control in a weak moment, and then sex and the subsequent lie about her pregnancy are used as tools to bind Roxy to Rudeus, whereas an emotional progression toward both would have felt more cohesive in my humble opinion.
Setting aside these issues, this volume was brilliant. I haven’t spoken much about the surface-level plot (the journey through the labyrinth, solving puzzles, the battle with the Hydra, and Rudeus’ shameful return), as it fades in comparison to the internal struggles, but I also found these aspects exciting with some unexpected twists that provided a poetic framework for the entire work, connecting Rudeus’ reunion with his father at the beginning, processing his death in the middle, and finally taking on his role at the end. Before I go on for too long, I’ll wrap up my observations here. Now, I’m curious to see how the anime will adapt this story and how Volume 13 will build on it, once I find the time to read it.