Oh! Boarding House. Soul-won lost every penny of the 100 million won that his mom lent. And to make matters worse, he gets fired from his job. His mom forg*e him on condition that he hand over her job as running a boarding house. Then she left for a trip overseas. All of a sudden, Soul-won becomes the owner of the boarding house. From the very first day, a great deal of trouble happens. Wang Ye-min who is so sensitive that he complains all the time makes Soul-won feel uncomfortable. On top of that, Soul-won’s cousin, Jae-woo is mean to him in all respects. How come a new border doesn’t show up late at night? And, the new boarder knocks out a sneak thief cold and astonishingly appears in the long run…. Five men starts living together in the Fifth Boarding House this way!