Death March to the Parallel World Rhapsody, Vol. 12 (manga)

When Elder Dohal, lord of the dwarves, asks Satou to help forge a powerful new sword, his smithing skills are put to the test. After a long night sweating over the anvil, Satou's new sword is finished, and its power is like nothing he's ever seen before. But there's no time for swordplay, as Bolehart City beckons, and its streets are replete with delicious food, skilled craftsmen, and new spells to purchase!