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On Christmas Eve, Rintaro’s scheduled moving day, his aunt visits him. After she leaves, Tiger reappears to share urgent news: Sayo has been kidnapped and is trapped in a fourth labyrinth. Rintaro immediately enters the portal with Tiger. During a journey in a horse-drawn carriage, Tiger reveals that he’s the soul of a book that Rintaro’s mother used to read to him. In addition, he explains that cherished books can gain a soul but that neglect can warp this soul, creating a malevolent being. He says that their adversary is the twisted soul of a powerful but unloved book.
Tiger then leaves Rintaro to face the foe alone in a desolate replica of Natsuki Books. The adversary, an elderly woman, shows Rintaro visions of the negative consequences of his actions in the other three labyrinths. Unshaken, Rintaro argues that the true power of books is their ability to teach empathy. As he speaks, the three previous labyrinth masters appear and voice their support for his philosophy. They say that his actions initially caused them hardship but ultimately set them on more fulfilling paths. This revelation moves the woman, breaking her coldness, and the labyrinth dissolves as she releases Sayo and sends Rintaro back to his world. He awakens to find Sayo sleeping safely beside him.
Three months later, Rintaro is living alone and managing Natsuki Books, having decided to stay. His aunt agreed on the conditions that he attend school, call her regularly, and ask for help when he needs it. The magical passageway at the back of the shop has vanished. Sayo stops by on her way to band practice, and they discuss the importance of reading challenging books. Before leaving, she invites him to dinner, and he thanks her for her support. After she departs, Rintaro hears Tiger’s voice one last time, wishing him luck, and sees a flash of the cat disappearing over a fence. Feeling a renewed sense of purpose, he settles down in the shop and opens a book.
The novel’s concluding chapters are its thematic apex, crystallizing its argument about the purpose of literature. The final confrontation isn’t with a person who misuses books but with the despairing soul of a book that feels forgotten. This antagonist, in the form of an elderly woman, embodies a cynicism born from witnessing centuries of neglect, arguing that ideals are futile. Her challenge forces Rintaro to move beyond defending the act of reading to articulating its ultimate moral function. His climactic declaration that the true power of books is empathy is the story’s thesis statement. Validating this realization is the reappearance of the three previous labyrinth masters, who testify to the positive transformations that Rintaro’s arguments have wrought in their lives. Their endorsements reframe Rintaro’s actions as acts of empathetic intervention, thematically proving his point that The Power of Books to Cultivate Empathy is a force capable of redeeming even those who have corrupted literature.
These final sections complete Rintaro’s character arc, charting his transformation from a reclusive hikikomori into an active agent in his own life. In the first three labyrinths, Rintaro acted primarily as a defender of his grandfather’s philosophy. The kidnapping of Sayo in the final chapter shifts his motivation from the abstract to the deeply personal, compelling him to act for another person. This evolution thematically marks the culmination of his journey toward developing The Courage to Emerge From Isolation. His courage is no longer reactive; it’s proactive and rooted in his connection to Sayo. The Epilogue solidifies this transformation by grounding his newfound confidence in the real world. Rintaro’s new life is defined by interdependence. His agreement with his aunt is crucial; her final condition—that if he has trouble, he should “ask [her] for help” (188)—reframes strength not as self-sufficiency but as the wisdom to seek support. The text thereby presents a mature vision of courage built on community.
The novel’s allegorical framework concludes in the fourth labyrinth, which moves from critiquing external practices to exploring an existential threat. Whereas the first three labyrinths personified specific forms of The Corruption of Reading in the Modern World (hoarding, condensing, and commercializing), the final labyrinth represents the spiritual death of a book from abandonment. The antagonist isn’t a villain driven by ego but a figure of tragedy. This final challenge is therefore psychological and philosophical. Rintaro can’t win by logic alone; instead, he succeeds by offering a countervailing emotional truth. The novel gives this abstract battle form through the symbolism of Tiger, who reveals his true nature as the soul of a book that Rintaro’s mother cherished. Tiger’s statement that “[a] cherished book will always have a soul. It will come to its reader’s aid in times of crisis” explicitly links the story’s magical elements to the emotional power of reading (151). Tiger embodies literature’s ability to guide and protect.
Structurally, the juxtaposition of “The Final Labyrinth” with “How It All Ended” translates the novel’s fantastical conflicts into a tangible resolution. The climax within the labyrinth provides philosophical closure, while the Epilogue shifts from the surreal to the mundane. The disappearance of the magical corridor from Natsuki Books signifies the end of the hero’s journey and Rintaro’s reintegration into society. The lessons learned in the labyrinths now have practical application in his daily routines: managing the shop, attending school, and navigating relationships. This structural choice emphasizes that the quest was a catalyst for personal growth. The story’s ultimate resolution isn’t a magical reward but the quiet, deliberate construction of a meaningful life. Rintaro’s decision to continue his grandfather’s legacy preserves a humanistic tradition.
The novel’s conclusion offers a quiet but resolute model for the future of reading. It eschews a grand, systemic victory in favor of a personal one. Natsuki Books becomes the physical manifestation of the story’s ideals—a sanctuary for literature valued for its ability to foster connection. Rintaro’s new life illustrates the holistic integration of literary values into a modern existence. The novel reinforces the value of slow, deliberate reading through Sayo’s struggle with a difficult book, which positions the act of reading challenging literature as a vital exercise. In the novel’s final scene, Rintaro opens a book as the shop’s bell rings. This image presents an enduring cycle. The tradition of thoughtful, intentional reading, passed down from his grandfather, has been tested and affirmed and is now ready to be shared. The fantastical battles are over, but the real work continues in the everyday act of placing a book into the hands of another person.



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