Gimai ga Seijo dakara to Konyakuhaki Saremashita ga, Watashi wa Yousei no Itoshigo desu

Margaret Silver, the daughter of the Duke, could see fairies from an early age. But that was a secret between her and her deceased mother. Until one day, she met someone who saw Margaret for who she really was, not as the fairies’ beloved child. https://www.cmoa.jp/title/257421/