Legend of Ruined Eternity

Alan, a typical college student, returns from exhausting mid-terms only to find himself summoned into another world. There, he finds himself branded with the markings of a 'Hero' and tasked with defeating the Demon Lord who stands above all of Humanity. But when thrust into this sudden role, can he rise to the challenge or will he fail and send the world into ruin?Will probably have short chapters since time is a bit lacking.