is a Japanese light novel series written by Misa Aoi and illustrated by Yoh Hihara. It began serialization as a web novel on Kakuyomu in April 2023. It later began publication under Fujimi Shobo's Kadokawa Books light novel imprint in April 2024. A manga adaptation illustrated by Yohi Suzu began serialization in Enterbrain's josei manga magazine B's Log Comic in September 2024.
Synopsis Martina is a girl with a massive love for reading books, so much so that she's read every book in her town's library. She sets her sights on the civil servant exam, so she can access the palace's royal library. She later succeeds in the exam, giving her access to the library. However, monsters start attacking the palace and threatening the library, so Martina decides to use her photographic memory from all the books she has read to defend the kingdom.
Media Light novel Written by Misa Aoi, Genius in the Library: This Bookish Rookie Will Save the Day! began serialization as a web novel on Kadokawa Corporation's Kakuyomu website on April 14, 2023. It later began publication with illustrations by Yoh Hihara under Fujimi Shobo's Kadokawa Books light novel imprint on April 10, 2024. Five volumes have been released as of June 10, 2026.
During their panel at Anime Expo 2026, J-Novel Club announced that it had licensed the series for English publication, with the first volume set to release in October later in the year.
Manga A manga adaptation illustrated by Yohi Suzu began serialization in Enterbrain's josei manga magazine B's Log Comic on September 5, 2024. The manga's chapters have been compiled into two tankōbon volumes as of April 2026.
Reception The series, alongside I Have No Need for Your Love, won the Light Novel Prize at the 2026 Digital Comic Awards.
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