The blacksmith Anvil created weapons alone in a ruined world. He came across a community, a hero universe, where there are heroes of every dimension. All the heroes wanted his weapons, all the monsters hated him, all the world blessed his existence, however nobody prevented his death. Decades later, a dimensional invasion started on earth. Kang Shin-hyuk, a boy who can’t use mana inherited Anvil’s VIP ID and memories.