Seven Seas Secures Rights to Nakaya Onsen's Haunting 'Phenomenon X: Paranormal Crime Files'; Volume 1 Arrives Fall 2026

The landscape of English-language manga is set to expand dramatically with the forthcoming arrival of Nakaya Onsen’s critically acclaimed series, Phenomenon X: Paranormal Crime Files. Seven Seas Entertainment has officially announced its acquisition of the license, scheduling the debut of Volume 1 for October 2026. This highly anticipated release promises to deliver a distinctive blend of eerie supernatural occurrences and grounded investigative drama to readers worldwide, following its successful serialization launch in KADOKAWA’s prestigious Harta magazine back in October 2024.
Nakaya Onsen’s Creative Shift
Nakaya Onsen is a creator celebrated within the anime sphere, primarily recognized for his dynamic and intense work as an action animator. However, Phenomenon X marks a significant and intriguing pivot. Onsen himself has stated that while his animation career thrives on high-octane sequences, his manga offers a drastically different experience: a quiet, reflective detective narrative consciously stripped of traditional action elements. This creative juxtaposition showcases Onsen’s impressive versatility and provides fans a compelling, fresh perspective on his storytelling capabilities.

The Paranormal Crime Files Narrative
The narrative plunges readers into a world where the inexplicable is routine. We follow Anan, a cat-eared demi-human detective whose professional life usually involves standard procedures, until he is abruptly paired with Kanai. Kanai, a mysterious federal agent defined by his spiked hair, dark shades, and an intentionally vague history, introduces Anan to cases that defy conventional logic. Their joint investigations unravel a series of truly bizarre incidents: spontaneous combustion, an ancient mummy unexpectedly roaming a suburban street, and sunflowers blooming robustly amid the deepest chill of winter. Each assignment forces the mismatched pair to challenge their preconceived notions, navigating the nebulous zone where criminal intent meets paranormal reality.
Release and Pricing Details
Seven Seas Entertainment confirms that Phenomenon X: Paranormal Crime Files Vol. 1 will be widely available in both physical print and digital formats, priced competitively at $13.99 in the U.S. and $17.99 in Canada. Offered as accessible single volume editions, this series is primed to capture the attention of both dedicated detective manga enthusiasts and newcomers seeking gripping supernatural mysteries. With its compelling premise and the distinctive artistry of a seasoned animator making his mark in the manga world, Phenomenon X is poised to become an essential highlight of the Fall 2026 release schedule.
Credits
Phenomenon X: Paranormal Crime Files
Author
Nakaya Onsen
Cover Art
Nakaya Onsen
Studio
N/A
Publisher
KADOKAWA
Producers





