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Yen Press announced on social media that it will publish Oshi no Ko TV Anime 1st Season Guidebook: First Report, a compilation book that goes over details about season 1 of the anime adaptation of the manga. There’s no release window for it yet, though the Japanese version came out back in July 2024. It is one of 10 announcements that came up on August 15, 2025.
Since this guide to season 1 of the Oshi no Ko anime is already available in Japan, we know what to expect. It is, in part, an art book. So concept art and storyboards from the show will appear in it. However, there are also a number of interviews in it, consisting of people who worked on the adaptation, voice actors, and even YOASOBI, who worked on the opening theme song “Idol.”
Here’s the image that acted as the official reveal:
This isn’t the only Oshi no Ko supplemental material Yen Press published, as it also picked up one of the light novels and some other releases. It released Oshi no Ko: Spica the First Star back in July 2025. Its Oshi no Ko “Coloring x Idol” Color Activity Book debuts in November 18, 2025. The 1st Illustration Collection: Glare x Sparkle came out in November 2024 too.
Oshi no Ko TV Anime 1st Season Guidebook: First Report will come out in English and cover season 1 of the anime adaptation. Said anime is streaming on HIDIVE. Yen Press handles the manga outside Japan, as well as other books based on the series.
