Tells the story of three female best friends, who each face a particular life crisis on the year before they all reach the age of 30. The three protagonists are Bong Woo Ri, Cha Woo Ri, and Kim Woo Ri. Fate not only bestowed them the same name, it also brought them together and allowed them to form an incredible friendship, a special bond which they depend on to get them through every trial ahead.