Kim SeungYeon is very popular girl who is well-known in her city and school. But she is well-known because of one reason.... which is the over protectiveness  of 4 of her brothers SungGyu, DongWoo, SungYeol and Myungsoo which gave them the nickname of sasaeng oppas by outsiders. Despite often being misunderstood by others, all of them are also undeniably good looking and led to girls falling head over heels for them. But she also have another brother named SungJong who is the complete opposite of them, no good looks and no girls sticking to him like super glue but one thing positive about him is that he is the only normal brother that SeungYeon have. He is only a year older than her so naturally they will be closer to each other which often led to him having to run "errands" for his brothers. SeungYeon is also often being asked out by alot of guys but to her surprise, they will always disappear the next without a trace without fail. What she doesn't know that it was her sasaeng oppas doings, they will do things ranging from verbal abuse to violence to scare her admirer away and it always succeeds. What if one day SeungYeon meets the right guy and they fall in love? Will he be defeated by her sasaeng oppas and end up with her??

sorry to all sungjong fans for saying that he's ugly... i love jongie too but its just that i think he's suitable for this character,,,