To Level and Chew Up a Newbie 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

「Asta Chronicles」, where the seeds of MMORPG appeared like a comet in the dry game market. On the day when the notice of the ‘mythology’ difficulty raid update, which is the most recent update in a long time, was announced, the heart of Ji-Jeong (Seong Cha-hyun), the master of the famous guild ‘Haste’, who ranked first in all server guild rankings and recorded the most records for first clear, is excited. However, this time, of course, he logged on to the game with the intention of completing the first one, and on that very day, he heard the news that his partner healer would be enlisting!