Welf Crozzo

A 17-year-old human blacksmith with red hair and a determined gaze. Formerly a member of the Hephaestus Familia. To acquire blacksmithing abilities, he teams up with Bell and Lili to challenge the dungeon and ranks up to Level 2. He converts to the Hestia Familia to participate in the War Game against the Apollo Familia.

He meets Bell while searching for armor he crafted and forms an exclusive contract with him. Generous and with a craftsman's spirit, he acts like an older brother to Bell. He harbors feelings for Hephaestus and confesses that he wants to date her once he can create weapons she acknowledges. Originating from the Rakia Kingdom, he manifested his skills around the age of 10 and became the only one in his fallen family capable of crafting Crozzo Magic Swords. However, he grew tired of being forced to forge magic swords by his family and fled the Rakia Kingdom.

In combat, he primarily equips a longsword and takes on a frontline role, using ultra-short incantation anti-magic spells to induce enemy magic explosions and self-destruction. He despises magic swords that self-destruct, leaving their users behind, and initially refused to forge them out of principle. Following Hephaestus's advice, he set aside his stubbornness and began forging magic swords from Volume 5 of the main story. By Volume 14, he successfully creates a new type of magic sword and adopts a more positive outlook towards them.

The editor in charge wanted Welf and Lili to join the Hestia Familia quickly, but the author insisted on expressing the catharsis of the group's formation, leading to their joining in Volume 6. According to the author, the training scenes in the dungeon in Volume 14 reveal all of Welf's inner growth and development.

His alias is Ignis.