My Quiet Blacksmith Life in Another World: Volume 4 (Manga)

Eizo’s back from the capital, Diana has permanently joined the family, and requests just keep piling up at the forge! First, Helen asks Eizo to sharpen her twin blades, and then Camilo commissions a custom rapier one made of mithril. Eizo struggles to master this difficult ore, but the final product is sharper and more powerful than anything he’s ever forged. However, this is frightening to Eizo, who doesn’t want to see anyone harmed, and he finds himself agonizing over the bloody implication…