Four men and women flat-share flower in Beijing a 4 floor of block B apartment, one is as conspicuous star assistant drunby youth "Jia Yi", one is the "ideal type of Jobs" as sacred muddleheaded young people "Zhang Yang", is a healthy young idiot "struggle" in the boxing training, there is a pen, depression frustrated literary type bitter forced young woman "Li chuan". The 4 floor of block B story begins, it is a reflection of a big city. People in the bitter years, we spent the two force youth, in pursuit of Niubi dreams and idiot friend, pack to force a way......