Light‑novel special book teased

A week before its April 15 release, the publisher’s account for お隣の天使様 showed fans a cover that was never used: Mahiru with cat ears and Amane with bunny ears, framed as a “scrapped” design for the new special book. This is not a rumor or a loose tease anymore. GA Bunko already has the book listed as お隣の天使様にいつの間にか駄目人間にされていた件 special book, priced at 935 yen, with a release date of April 15, 2026. The book is a side volume for a series that has been running in print since June 15, 2019, and the main line just reached volume 12 on March 15, 2026. That long release history is why a “special book” lands more like a collector item than a random extra. GA Bunko says this is the series’ first special book, and it is packed like an archive box in paperback form. It includes novelized versions of drama compact disc stories one through five, plus a newly written short story based on themes that ranked high in reader surveys. It also adds a newly drawn jacket by illustrator Hanekoto, an illustration gallery, and character pages with series information the publisher is pitching as exclusive to this volume. Amazon’s listing puts the package at 416 pages, which is long for what sounds like a bonus book. The timing is not accidental. The television anime’s second season began broadcasting on April 3, 2026, on Tokyo Metropolitan Television at 10:30 p.m. Japan time, with streaming starting the same day on Abema and d Anime Store. That means the franchise has two engines running at once: fresh weekly anime episodes and a print release arriving 12 days after the season premiere. Publishers do this when they want casual viewers, bookstore regulars, and existing collectors all looking at the same property in the same month. There is also a retail chase already in motion. On April 2, GA Bunko posted store-bonus information for Animate, Gamers, and Melonbooks, which usually signals that fans who care about paper extras need to choose where they buy before release week. So the little cat-and-bunny cover tease is doing two jobs at once. It gives fans one more piece of art to save, and it reminds them that an officially listed 416-page special volume with store bonuses hits shelves on April 15, right as season two is trying to turn spring anime attention into book sales.