Banished Heir

In a world where magic reigns supreme, Harvey Chroton is an outcast. He is the heir to the Chroton family, a powerful clan of magic users, but his powers are unique and limited. Unlike the rest of his family, he cannot cast spells, but he can create objects with mana. However, his mana capacity is so small that he was banished from his family.

Now, Harvey lives as an apprentice jeweler for non-magical items for the nobility. But he has a secret: every time he uses his power, his mana capacity increases.