Ultimate Devouring System 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

After transmigrating, Ye Xuan chanced upon the Devouring System. Not only could he devour everything, he could also exchange things for bloodlines, martial arts, divine weapons, medicinal pills, and all sorts of treasures… A ridiculously broken system! “Don’t you dare mess with me. Want to try me? I’ll swallow that precious divine sword of yours!”