八彩国の後宮物語～退屈仙皇帝と本好き姫～

Synopsis

Princess Suzuka of the Lu Kingdom, a land of ominous colors and the dreaded color black, loves books so much she's known as a “book spirit.” Years after her engagement was broken off, a chance event leads her to the harem of the Immortal Emperor. She navigates the treacherous life in the harem using her knowledge from books!