The story between mentor and student is really well done, in every eps there's a change of shades between the 2 leads and the growth of the characters is really captivating to see. I liked the side story with the others ghosts, and the overall emotion is an heartfelt bond between the 2 men. It's cute too the relationships between the leads and 1) the lover 2) the confused relationship with his friend not only friend (the youngest ones)! The main point is showing what is a doctor's mission that is keeped alive throughout the improving of the new ones. Good!!!