Kang Si-eon, an ordinary editor.He has always lived his life as an extra—both in reality,and even in the worlds of novels.One day, a five-volume fantasy novel is suddenly delivered to him.When he opens his eyes, Kang Si-eon finds himself inside the novel—as a mere extra.“How long am I going to struggle through life as a background character? I want to shine too!”His rank may be that of an extra, but he’ll live like a protagonist!One extra begins to conquer the world inside the novel!
