Seventeen-year-old Hajime Nagumo is your average, everyday otaku. However, his simple life of pulling all-nighters and sleeping in school is suddenly turned upside down when he, along with the rest of his class, is summoned to a fantasy world! They're treated like heroes and tasked with the duty of saving the human race from utter extinction. But what should have been any otaku's paradise quickly turns into Hajime's nightmare. Ridiculed and bullied by his classmates for being weak, he soon finds himself in despair. Will he be able to survive in this dangerous world of monsters and demons with only a glorified blacksmith's level of strength?