Story
To protect the Angel, the strongest Grim Reaper steps in— The Brugel Kingdom, known as the land of knowledge, boasts numerous libraries. Within the royal capital lies the Forbidden Library, which houses only cursed books and texts containing abilities that could destroy the nation if misused. Kumura, the Chief Librarian possessing omniscient power, and Vil, the Assistant Librarian wielding the power to bring death to all things, manage, seal, and protect these forbidden texts.
Synopsis via AniList (English).
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