"Pun(M)", a medical student, and "Pun(F)", a nutritionist, fell in love and got married, although Pun's (M) family disagreed because he comes from a wealthy and successful family and believes that Pun (F) is not good enough for him. Pun (M) abandoned his dream of becoming a doctor to become an insurance salesman because he wanted to earn money and have more time for Pun (F). Pun(M) has trouble with his work and his family looks down on Pun(F) more. The two start to fight and eventually divorce. Six years later, Pun(M) goes back to medical school to chase his dreams. Pun(F) also goes on to study medicine as well. The two have an internship at the same hospital and work together as emergency room interns for 3 months.