From Old Country Bumpkin To Master Swordsman (Manga) Vol 03

After bringing down the deadly named monster Zeno Grable, Beryl returns from the dungeon attack a hero, but the showdown has left him with a damaged sword. At the same time, Curuni struggles with a dreadful losing streak, and Beryl suggests that she could do with a change in fighting style. The solution to both problems lies with the local blacksmith, Balder, who just so happens to be another one of Beryl’s disciples! As it turns out, Balder has a special offer in store for his old master… Yen Press
(W) Shigeru Sagazaki, Tetsuhiro Nabeshima (A) Kazuki Sato