An unexpected visit from a real demon dramatically changed the life of unemployed programmer Sergei Sviridov. It turned out that according to the calculations of the magicians of many worlds, Sergei is the Chosen One. Only he and no one else can obtain the Talisman of the Four Elements, better known as the Holy Grail, and, as is usual with the Chosen Ones, save the Universe from destruction. However, after Sviridov, accompanied by an insidious demon, entered the portal leading to other worlds, it turned out that being a hero is not nearly as pleasant as it is written in books. Sometimes it’s painful, sometimes it’s disgusting, sometimes it’s even deadly... But it’s still incredibly interesting!