Blacksmith OCs in anime? Absolutely! One that immediately comes to mind is Tsubaki from 'Soul Eater'. She's not just a background character—her role as the weapon meister crafting Demon Weapons for the main cast is central to the story. Her workshop scenes are some of my favorites, full of sparks and personality. The way she balances her tough, no-nonsense attitude with genuine care for her friends makes her stand out.
Another great example is Hattori Hanzo from 'Gintama', though he's more of a legendary figure. His swordsmithing legacy is woven into the series' lore, and his brief appearances always carry weight. The anime even plays with his historical reputation, blending humor and reverence. It's a neat nod to how blacksmiths are often mythologized in Japanese culture.