Skeleton Evolution: who was summoned by the Goddess 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

Jiang Cheng was reborn in the game world, and he transformed into a skeleton as he was summoned by a beautiful witch with Skeleton Technique! This kind of skeleton is one of the strongest characters in the game! Fortunately, it has an infinite evolution system! He was a god level skeleton in the game world, and he defeated many other players.