The Savior is Ruined is a Manga/Manhwa/Manhua in english language, Adventure 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 male protagonist who has cleared all types of different worlds comes to Earth, and he decides to give up his identity as a savior and starts to show off. It turns out that the seemingly peaceful earth is a world designed by the enemy. The helpless male protagonist has no choice but to start resisting under the agreement with the God King in order to have a peaceful life.