This is a story about a girl, who has to live with BIGBANG as her brother Ji Yong. Because of the problem Ji Yong has, (which you will find in the story) , she has to go throw the scadule of her brothers. But BIGBANG members doesnt know about this, they just think that Ji Yong had a vacation and he had come back. And even the CEO of YG (sajangnim) doesn't know that Ji Ha is replacing him. She has to live there until her brother comes back, but it's not easy as it seems...