Teihen Ossan, Cheat Kokusei de Isekai Rakuraku Life 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

Reincarnated from a bottom-tier salaryman to an adventurer, he possessed only one skill: [Game]. A seemingly dead-end second life enveloped in games even in another world… This is the record of a man’s meteoric rise from the depths to cheat-level life in another world!