Mushoku no Eiyuu: Betsu ni Skill Nanka Iranakatta n da ga

At age ten, every child receives a “class” that grants skills and shapes their future, so everyone expects Arel, son of the Sword Princess and a legendary archmage, to inherit extraordinary talent. Instead, the ceremony declares him classless, making society view him as a child with no future.

Arel refuses to let one label determine what he can become. He discovers that he can learn the techniques of any class through training, even if doing so requires far more effort than it does for those given natural gifts. He studies swordsmanship and magic one discipline at a time, always seeking stronger opponents and new limits to overcome. What others see as a deficiency becomes freedom to him: if the gods gave him no fixed path, he can choose every path himself.