The Slumbering Ranker summary: Having dedicated 10,000 hours of his life to mastering Idea, an immensely popular online game, Lee Hyunsung has earned a reputation as a skilled player. His expertise lies in the covert class where he is known for his exceptional abilities that allow him to vanquish opponents with ease. His talent has been applauded by both players and developers, steadily rising through the ranks. However, Hyunsung's ability to maintain this level of success and claim the top spot in the game remains uncertain and could merely be a facade.