The Unaware Atelier Master

The Unaware Atelier Master summary: One day, Kurt, a renowned kind-hearted boy, is unexpectedly removed from the Hero's Party for being deemed "ineffective." Though he ranks low in combat skills such as weapon and magic usage, he uncovers an extraordinary knack for repairing castle walls and mining minerals. To everyone's astonishment, Kurt exhibits unparalleled mastery in areas like cooking, crafting magic tools, and building, earning an SSS-rating for all skills barring combat. Oblivious to his own remarkable talent, Kurt unintentionally becomes a rescuer for the city and ultimately the nation!