Tells of 4 grandchildren to the famous millionaire is MR.LEE DONG WOOK in the city of SEOUL, KOREA. He have 4 grandchildren It's SUHO,JUNGKOOK,BAEKHYUN AND JACKSON But they dream a diffrent by people Diffrent name,Diffrent atitiued, and Diffrent mom and dad. (They are cousin) Just listening to their name will many people recognize them and know how rich they are..It's because they grandfather proprety.. But!!!~~ Only one person can land their careers it is Park EunMin a Doctor called Doctore stranger. Who are the four grandchildren of the millionaire?? And who are called doctors stranger? Wait for the story of DOCTORS STRANGER AND FOUR KNIGHT.