There is a key who opens the door, between hell and earth, and if its use, the supreme king will destroy earth. Marco, who is a loser, with no money, no professional career, a virgin with no bitches, is the one who in charge to protect it. While Marco tries to avoid to get kill and be a responsible superhero, he will keep searching for a girlfriend, even if it means leaving demons destroying a public library... as I said, Marco is an inmature loser.