Legendary Ranker’s Comeback is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

One day, the dungeon apocalypse game, Dream Side, turned to reality. Having just completed University, I was stuck inside the elevator while delivering packages when a blue screen appeared before me, along with a monster! As I used to be the number 1 ranker of that game, I destroyed the extremely difficult tutorial and continued playing the game like an elite player…