Library committee members tackle odd cases in newly revealed novel-based adventure

Shueisha Games and developer iMel have announced Seasons of Books and Keys, a "drama-like adventure" game adapted from Honobu Yonezawa's bestselling mystery novel, according to Gematsu. The game was revealed for Nintendo Switch and PC, and Anime News Network reported that the announcement came with a trailer and a Steam page. The story centers on two high school library committee members, Jiro Horikawa and Shimon Matsukura, who get pulled into increasingly strange cases. As monstervine put it: "increasingly strange cases ranging from a safe that won't open to other odd situations" That grounding in a library setting gives the mystery a distinctly literary flavor, and the production is fully voiced, as both monstervine and Anime News Network noted. Nintendo's own news post, as relayed by nintendoeverything, confirmed that the adaptation is headed to Switch. GoNintendo marked the announcement with a bit of its own wordplay: "Let's get a read on the situation." The pun suits a game built around books and keys, and it echoes the puzzle-like premise of the source material. Anime News Network reported that Seasons of Books and Keys is set to launch in winter 2026, and the fully voiced "drama-like" presentation suggests Shueisha Games is prioritizing narrative atmosphere over action. With both Switch and Steam versions planned, the adaptation is poised to reach readers and players across platforms, as Gematsu also detailed.

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