The unlucky man vs. the king of luck 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.nl fastest updating comic site. The Summary is

Ye Wuyou crosses over to the mysterious world and becomes a small scum with no background, no talent, and no luck. He thought he would live his life in an uneventful way, but he never thought he would get a god-level luck system. Years later, when he looks back, Ye Wuyou is already at the top of the world, and is known as the son of luck!