I know there are about work etc where people grow in their personalities and end up being better at what they do, but I mean like for example a soccer team fighting from the bottom to the top, or something like the Japanese drama "waterboys" - just 5 boys training together and fighting for their dream which is to perform synchronized swimming. Waterboys is full of many heartwarming moments, bromance and romance. To see how they overcome all the hardships is such a joy.
Or why not a group of people opening a new restaurant? Say they buy a dirty place, clean it and aim for the top. Overcoming hardships, fighting for success, and around that they can of course have all kind of side stories like romance, bromance etc. There was a little of that in Pasta and Coffee Prince but it is still not the main story of the drama.
There are many Japanese dramas like this, "sports com" as they are called in Japan, two examples are Waterboys and Suikyuu Yankees, but I have yet to see one from Korea. As korea makes the best dramas in the world, I am sure they could make a story like this so damn good.
Why do you think you don't often see this in Korean dramas?