不吉な色と忌み嫌われる黒の国「呂国」の姫、鈴華は「本の妖怪」といわれるほど本が好き。婚約を破棄されて数年、ひょんなことから仙皇帝の後宮に行くことに。前途多難な後宮での生活を本の知識で乗り越えていく！ In the land of Lu—a country reviled for its ominous black color—lives Princess Rinka, a young woman so in love with books that she’s known as the “Book Youkai.” After her engagement is annulled, several years pass until, by a twist of fate, she is sent to the imperial harem of the Celestial Emperor. […]

不吉な色と忌み嫌われる黒の国「呂国」の姫、鈴華は「本の妖怪」といわれるほど本が好き。婚約を破棄されて数年、ひょんなことから仙皇帝の後宮に行くことに。前途多難な後宮での生活を本の知識で乗り越えていく！

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In the land of Lu—a country reviled for its ominous black color—lives Princess Rinka, a young woman so in love with books that she's known as the "Book Youkai." After her engagement is annulled, several years pass until, by a twist of fate, she is sent to the imperial harem of the Celestial Emperor. Faced with a future full of obstacles, Rinka must navigate the treacherous life of the inner palace… armed with nothing but her vast book knowledge!