Strongest King 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

The legendary key of the four kings reappears in the world, and all forces in the alien world are ready to move. Dai Xiaolou, a young girl, accidentally gets involved in the conspiracy of …