Shinjuu Kishi-sama no Senzoku Maid

A girl was born into a noble family famous for their magic, but she was the only one among them without any magical power. Because of this, she was considered useless and treated as a servant in her own day, gentle mythical creatures begin to approach her in mysterious ways, drawing the attention of a duke who suspects she might have a hidden time, the girl starts to discover her true talent, gradually moving closer to freedom and is the story of a mistreated girl who finally learns her own worth.+