The Wolf Won't Sleep 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

On a fervent quest to become stronger ---- the heroic tales of the adventurer Lecan start!

The One-Eyed Wolf Lecan, jumped into a black hole he found in the confines of a labyrinth, falling into another world. No matter the world he is in, the adventurer Lecan doesn't lose his way. Seeking strength, challenging labyrinths, and defeating formidable foes ---- This is the stout fantasy written by Shien BIS (Henkyou no Roukishi), combined with the passionate art of Shinkawa Gonbe (Yokohama-eki SF).