heir of mythical heroes

han jungmin, who only performs “top on in written exams,” decided against becoming an explorer because he lacked the necessary skills. he started writing a fantasy book after taking some time off from the adventurer academy. [the world has copied your work.] author of the narrative introduces the “unique class.” one day, the book jungmin penned begins to materialize and assumes the role of “author of the story.” and on top of that… [the sole extraordinary talent opens.] a unique talent that no one else possesses. will jungmin be able to fulfill his ambition to become a dungeon adventurer?