Sword Dance Online is a Manga/Manhwa/Manhua in (English/Raw) 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

He was a part of the top 10 players in the beta test for "Sword Dance Online", but when he was put into a vegetative state after the car accident, he became a monster in the game. After endless amounts of time spent getting stronger, he soon struck terror to the noobs of the server and encountered affectionate situations with countless women.