Pyeonghwa Restaurant is a Manga/Manhwa/Manhua in english language, Drama 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

Seoul has become a mess with multiple dimensions mixed together. Demon King from Hell, Blessed Hero, Destruction-level Dragon...All of them are just docile guests at Pyeonghwa Restaurant! The peaceful restaurant management story of 'Sua', the strongest chef in all dimensions!!