Uketsu’s ‘Strange Maps’ Tops Billboard Japan Charts & Reveals Musical Inspirations

The Japanese book market has a new leader, and it’s an author who’s quietly building a global following with a distinctly unconventional approach to storytelling. Uketsu, the enigmatic creator of the “Strange” series, saw his latest work, Strange Maps, debut at No. 1 on the inaugural all-genre Billboard Japan Book Charts. The achievement marks a significant moment for both the author and the newly launched charts, signaling a potential shift in what resonates with Japanese readers.

Uketsu’s success isn’t built on traditional narrative structures. His books are immersive experiences, blending prose with a wealth of visual elements – diagrams, drawings, and illustrations – creating a unique reading experience that appeals even to those who don’t typically engage with books. The “Strange” series has already surpassed 8.5 million copies in worldwide circulation, with Strange Pictures alone topping 2.1 million copies across 37 countries and regions, earning the title of a “global sketch million-seller.”

Strange Maps, the fourth installment in the series, takes this approach further, interweaving text with over 200 maps. The narrative unfolds against a backdrop of unsettling locations – abandoned seaside settlements and weathered tunnels – promising a culmination of the themes and techniques explored throughout the previous books. As of December 2025, the book had already surpassed 700,000 copies in circulation, earning the moniker “nationwide map mystery sensation.” Beyond topping the Billboard Japan Book Hot 100, which integrates print sales, e-books, and library lending, it also held the No. 1 spot for four consecutive weeks on the Billboard Japan Hot Bungei (Literary) Books chart.

The author’s commitment to maintaining an air of mystery extends to his public appearances. Uketsu appeared at the Billboard Japan Book Charts awards ceremony on December 16, 2025, fully masked, continuing a practice that has become his signature. A recent interview with Billboard Japan offered a rare glimpse into his creative process and influences, revealing a surprisingly diverse musical palate.

Uketsu’s musical tastes are rooted in his childhood, spent partly in the U.K. During the height of late-90s pop. He fondly recalls listening to the Spice Girls, Westlife, and Steps “constantly in the car,” alongside artists like Oasis and R. Kelly, though the latter proved a bit challenging for his younger ears. Returning to Japan, Southern All Stars became his first true musical obsession, sparking a deeper exploration of rock and pop from the 60s and 70s.

When asked about a song that left a lasting impression, Uketsu singled out “Sayonara Jinrui” (Goodbye, Humanity) by Tama. He described hearing only a brief snippet on television as a pivotal moment, noting its distinctiveness from the prevalent love songs of the time. “It was nothing like Southern All Stars, and it really stuck with me,” he explained. He appreciated how Tama’s lyrics, referencing familiar imagery like the moon and stars, felt more accessible and relatable to a child’s perspective.

Staying current with the music landscape is a deliberate practice for Uketsu. He admits to regularly checking Billboard’s global charts, approaching new releases with a sense of obligation, driven by his own creative endeavors. “I’m an amateur, but I do release music through videos from time to time, so I want to keep track of what kinds of sounds are out there right now,” he said. “It’s less about me making that kind of music myself and more about knowing what exists.”

Despite his growing international success, Uketsu remains focused on accessibility for his readers. He strives to create stories that don’t require specialized knowledge of Japanese culture or language, hoping that international audiences can “approach my books casually, without thinking, ‘Here’s Japanese literature.’” He expressed a desire for readers to simply enjoy the work on its own terms, allowing any Asian or Japanese qualities to emerge naturally.

Strange Maps represents a culmination of his artistic development. Having felt some regret over the ending of his first book, Strange Houses, he aimed to incorporate elements from that earlier work – abandoned settlements and deserted villages – while ensuring a more satisfying resolution. He also sought to integrate the literary approach he honed in Strange Pictures and the complex foreshadowing he experimented with in Strange Houses 2: Eleven Floor Plans, creating a definitive statement on his series.

Uketsu attributes the book’s success to the patience of his readership, acknowledging the two-year gap since his previous release. He emphasizes that he simply writes what he finds interesting, trusting that readers will connect with the work on their own terms. He describes writing with a single reader in mind, constantly imagining their reaction and seeking to please that individual.

Looking ahead, Uketsu expresses an interest in exploring new genres, specifically political dramas and financial stories. While acknowledging these fields are outside his current expertise, he sees potential for compelling narratives and a chance to challenge himself creatively. He doesn’t have a timeline for such a project, but envisions it as a significant departure from his previous work.

Uketsu’s success lies in his ability to create immersive, visually rich stories that transcend cultural boundaries. His dedication to accessibility and his unique approach to storytelling have resonated with a wide audience, solidifying his position as a rising star in the global literary landscape. As he continues to evolve as an artist, it will be fascinating to see where his creative journey takes him next.