Dungeons & Demons

You were transported to another world where everything is all about dungeons, what would you do? This is a story of a drunk young man who only knows to party all night, waking up to realize that he was now in a different world with a set of memories to serve as the background of his character with a game-like system. Will his life conquering dungeons and fighting demons from now on be as exhilarating as his party life back then?