About a brown haired girl who convinces this noble family to sponsor her cause she's a magician and/or doctor and to escape abuse. She's looking for her father, and there was an incident where fakes used her nail clippings to trick her into thinking they were biologically related. Her mentor, who treats her familiarly, routinely leaves the estate to look for HIS daughter who was kidnapped after birth, and reported to be blond. Clearly it's one of those, the MC is his daughter but he was lied to about her appearance, and they get along great together without knowing the truth.
About a brown haired girl who convinces this noble family to sponsor her cause she's a magician and/or doctor and to escape abuse. She's looking for her father, and there was an incident where fakes used her nail clippings to trick her into thinking they were biologically related. Her mentor, who treats her familiarly, routinely leaves the estate to look for HIS daughter who was kidnapped after birth, and reported to be blond. Clearly it's one of those, the MC is his daughter but he was lied to about her appearance, and they get along great together without knowing the truth.