Mushoku no Eiyuu: Betsu ni Skill Nanka Iranakattan daga—Sainou Zero no Nariagari

In a world where everyone receives a Class and Skills at the age of ten, and where such revelations have a huge impact on one’s life, Arel, the son of Sword Princess Farah and Archmage Leon, learns that he has… no class at all!
With no class, and no skills, all that’s left for Arel is hard work. And so, he takes to training, utilizing wits and cunning to emerge as an all-new type of hero!
(Source: One Peace Books)