This is very possibly the best Korean drama. The story follows an estranged surgeon Kim Sabu who works in a village hospital. He has a strong set of moral values and impressive skills that attract young doctors; he also 'picks up' those doctors that are discouraged or dishonored when he sees potential in them. Result: a brilliant team of doctors and nurses that work day and night to save lives.
The "romantic" in the title has very little to do with romance between couples, much more to do with romanticizing life and its meaning. Doctor Kim is romantic because he lives his life following his values and feelings, he saves his patients with his skills and feelings alike. It makes young aspiring talents gravitate to him. He gives them both comfort and knowledge- and fertile ground to grow.
Of course, there is a romance story- what kind of 'romantic life' doesn't have some romance in it. Story of Seo Woojin and Cha Eunjae is so well-paced and they feel so natural- super refreshing after so many stiff kdrama couples. However, this is a medical drama first, so romance scenes are not as prominent (an FYI for kdrama fans).
His pupils imitate this romance, each in their own way. My favorite story is that of doctor Seo Woojin in S2, who grew up without love, but then managed to find a fatherly figure in Kim, romance towards medicine as his calling, romantic partner in doctor Cha, and a full family in the rest of the staff. He had a lot of reasons to give up- but he doesn't- he carries his past trauma with such strength and gives himself a normal, healthy life.
Of course, one could say that all this is unrealistic, that people who live like this do not exist. I have to disagree- I met a few people like this. They are extremely rare gems that shine bright when it's the darkest, and they persevere, no matter what. It's an absolute privilege to witness people like that, both in real life, and in a drama.