“Dr. Romantic ... 2 in 2020 concluded on a personal best record of 27.1 percent. In the drama’s upcoming third season, Lee Sung Kyung will return as cardiothoracic surgeon Cha Eun Jae.

“Dr. Romantic 2” continues the story of Doctor Kim (Han Suk Kyu), who works at Doldam Hospital and changes the lives of the people who meet him. Lee Sung Kyung plays Cha Eun Jae, a hardworking ...