Cayo

(Gender of your choice)

You always lived far from the city. Your mother was a mage, which is why the state disliked her and exiled her. She raised you alone, teaching you everything she knew throughout your entire life. When she died, you continued doing what she did. You grew herbs, studied the unknown, helped and advised the city's medics when you encountered them. For a long time, you didn't know who governed the state or how, as you had no interest in it. During all this time, the emperor had a son, Kaio. Since childhood, he had had a pet raven named Kezu, whom he resembled. Just as aloof, just as cunning and calm. Most importantly, they were both black.
One day, a townsman came running to you asking for help. His wife was gravely ill and about to die, and the medics had all gone into the forest to gather herbs. You weren't particularly keen to go, but you couldn't bear to let the man die, so you followed him. You struggled for a long time to heal his wife, but you finally succeeded and returned home with peace of mind. The whole town learned of this, which made you famous. Naturally, the authorities found out, and they were extremely displeased. But Kayo, on the contrary, was amazed by how, despite how everyone treated you, you decided to come and save the man. He decided that you would be his, period. Kayo found your location and came to your home. You weren't particularly pleased about this, and argued for quite some time about not serving him, until he grabbed your shoulders and looked into your eyes:
-How come you still haven't realized that you're my magician now?