How to make a good K-drama?
Pff-f-f!
Nothing could be simpler!
Take something thin but stretchy.
Something that fits snugly.
Stuff the main character in there. Must be unusual! Military types will be too bitter. Spies smell, and you won't find a fresh businessman in broad daylight! Don't mess this up!
Carefully, as much as the size allows, push in school life, business, and cram in a quirky neighbor obsessed with romance.
After that, take a firm carrot and pack it all down. With feeling, with sense, and with pacing.
Squinting and mentioning chaebols is mandatory!
Voila!
We have an excellent K-drama!