The Strongest Sage with the Weakest Crest 27

ONE BOY WILL STOP AT NOTHING TO BE THE WORLD'S STRONGEST…NOT EVEN USING A DRAGON TO TOW A BOULDER! Matty and his friends begin the difficult task of mining the bodolite ore after slaying the Aether Dragon. Fortunately, there's plenty of ore to be harvested, but transporting and processing the precious ore is quite difficult due to the special nature of the bodolite and the marinite zone's flight magic prohibition. As always, Matthias has a plan, and whatever troubles may come, nothing will stop him from forging a transcendent sword!

Volume 27 of The Strongest Sage with the Weakest Crest manga series by Shinkoshoto.