Hagel owns the Beefy Weapon Shop in Arland, where he works as blacksmith making weapons, but likely also taking jobs making tools. In Atelier Rorona, he agrees to help Rorona by constructing custom made weapons for her and her party members, serving similar roles in Atelier Totori and Atelier Meruru.
In Atelier Marie and Atelier Elie, there is a weaponsmith very similar to Hagel known as Bukiya no Oyaji. In a interview with Gust's development team, it was stated that they are not the same character despite their similarities. However, Bukiya no Oyaji was included in the book "Atelier Series Official Chronicle" in the "Hagel Collection".