Sousei Mahou no Saigen Mono nu none raws https://ncode.syosetu.com/n0826gy/ Synopsis( A kingdom where everything is determined by the superiority of the 『Bloodline Magic』 that the nobles inherit from generation to generation. Hermes, the son of a prestigious noble family, for some reason does not inherit the bloodline magic and is banished from the royal capital. Under the guidance of Rose, a witch who saw through his talent, Hermes learned that the kingdom's common sense about magic was completely wrong...!?
isn't that the web novel translation https://www.novelupdates.com/series...-way-this-is-how-you-use-your-magic-you-know/ ?