Sousei Mahou no Saigensha

Hermes, the son of a prestigious noble family, was born with enormous magical powers and was a child prodigy with a promising future. However, as a result of the evaluation, it was discovered that he was incompetent and had not inherited the "bloodline magic," a unique magic passed down from generation to generation in the family of nobles. Exiled from the royal capital, he was on the verge of death in the depths of despair, but Rose, a legendary witch who recognized his talent, saved him and made him her apprentice.