Uketsu

While the books are often read as standalone mysteries, they are frequently discussed as a thematic trilogy that shares a unique style of puzzle-based storytelling. New readers often begin with Strange Pictures, which serves as an accessible entry point into the author's signature method of embedding clues within diagrams and floor plans.

The author originally gained notoriety for creating surreal, unsettling short films and articles for the Japanese entertainment site Omocoro. This background in visual media directly informs his literary work, where diagrams, floor plans, and drawings are not merely illustrative but are essential components required to solve the central mysteries.

Uketsu is a professional writer and creator who maintains a strictly anonymous public persona, appearing in videos and at media events wearing a white papier-mache mask and a black bodysuit. The name itself is a pseudonym meaning rain hole, and the author's true identity remains unknown to the general public.