The Slumbering Ranker

Historia

After sleeping a total of 10,000 hours inside Idea, the hottest online game around, Lee Hyunsung becomes one overpowered player! He's given an exclusive hidden class with an array of unique skills, and one of which allows him to fight in his sleep! He's slowly making his way up to the top, and everyone from the developers to other players are starting to take notice of this odd rookie. Will Hyunsung eventually become the top ranker in Idea? Or is this all just a dream that's too good to be true?

Sinopsis vía AniList (en inglés).