この世界の人々は、職業と神器と呼ばれる武器が与えられる。神より授けられた神器は人間が作る武器とは比べ物にならないほどに強かった。だからこそ、武器の生産、改造を行える『鍛冶師』という職業は最弱職であった。そんな最弱職になってしまった主人公。彼は冒険者をあきらめ、宿屋で仕事をしていたのだが、自分が『何でも』作れることに気づく。好きなものを作っていた彼は、気づけば有名な貴族や美少女と関係を持つようになっていた。
People in this world are given occupations and weapons called sacred treasures. The sacred treasures given to us by God were so strong that they were incomparable to human-made weapons. That is why the profession of “blacksmith” who can produce and modify weapons was the weakest job. The hero who has become such a weakest job. He gave up the adventurer and worked in an inn, but realized he could make “anything”. When he noticed that he was making what he liked, he had relationships with famous aristocrats and beautiful girls.