A tabletop game set is established, with its backdrop rooted in the golden age of alchemical mechanical civilization and magical lore. Much of the land was devastated by magical bombs akin to nuclear weapons, while pervasive radiation from magical energy triggered widespread biological mutations.

The character in question is the “Iron Oath Guardian.”

A core member of the Iron Oath Knights, and the last surviving descendant of the Valorian Imperial Royal Guard, he steadfastly upholds the ancient oath of the Knights before the Great Collapse: Protect the living, eradicate the aberrations.

Their armor is a meticulously maintained, imperial-issue plate suit—repaired generation after generation. The battle scars and rust etched across its surface serve as proud medals, commemorating countless clashes over three centuries against aberrant creatures and marauding raiders. Stationed at the largest human settlement in the wastelands, “Fortress City,” they stand as the survivors’ most formidable line of defense. Each Iron Oath Guardian undergoes the most rigorous training, mastering sword-and-shield combat and fortified-position defense; even when facing aberrants several times their own size, they never flinch or retreat a single step. They despise raiders who hoard resources without regard for morality, and they remain ever vigilant toward arcane scholars who recklessly wield the power of Source Crystals—but whenever the fight turns to safeguarding the survivors, they will always step forward to lead the charge.