Webhotaru haganezuka (鋼鐵 (はがね) 塚 (づか) 螢 (ほたる) , haganezuka hotaru?) is a supporting character of demon slayer:
He is a swordsmith affiliated.
Webour favorite swordsmith just revealed his face to the world.
Hotaru haganezuka has unmasked himself, and it turns out demon slayer really does hide its.