Faust is a Manga/Manhwa/Manhua in (English/Raw) language, Manhwa series, english chapters have been translated and you can read them here. You are reading Faust chapters on https://mangabttt.com, fastest updating comic site. The Summary is

The legend of the guardian Dragon. Back when God, sages, humans, and the Dragon coexisted, there was balance and harmony. But then the Dragon betrayed them and suddenly disappeared, and the world came to an end. This is the story of those left behind in the apocalypse, trapped by the bonds of time.