Can 2 cops and 2 rich heirs fall in love with each other? ~ Byul-yi (Moonbyul) and Daniel (Kang Daniel) are two cops who are in a mission to protect two incredibly rich inheritors, Jin (KimSeokJin) and Jihyo ( Park Ji-hyo). Coincidentally both of Jin and Jihyo's parents, who were close friends, disappeared at the same time. ~ Can Byul-yi and Daniel solve the mystery while keeping the heirs safe?