I Became a Secret Royal Inspector in a Novel

『The place I am walking through right now is Hanyang of the Joseon Dynasty, a street with scenery completely different from the modern world.』 『I entered a novel. And not just any novel, but the work I loved the most.』 On this road, I am the only one who can change the future. 『A convulsion ran through my body. At the same time, a brilliant light covered my eyes, and I saw a golden mapae spinning round and round.』 . . . As the new protagonist of this novel. 『The secret royal inspector has arrived.』