Biblia Second-hand Bookstore has been quietly open for business in some corner of Kamakura. Its owner is Shinokawa Shioriko, a young, pretty but introverted girl who is extremely shy around strangers and cannot interact well with people she meets for the first time. However, when it comes to knowledge of old books, no one can to compare to her. Talking about books makes Shioriko forget her shyness. In fact, she becomes eloquent and passionate. She unravels the mysteries and secrets associated with many old books with her vast knowledge and keen eye. Adapted from the novel series "The Biblia Antiquarian Bookstore Case Files" (ビブリア古書堂の事件手帖) by Mikami En (三上延).