Like the one in Nothing But You .
I find myself going back to this drama, particularly the scenes where the ML is being manipulative. There's a lot manipulators in dramaland but usually they are also quite aggressive and controlling. I want a ML who hides very well his intentions and makes the FL thinks she's independant when actually she's playing into his hand. He makes himself appear inoffensive and maybe even weak in order to keep her close. The ML from Well-Intended Love is also like that.
I don't care about the country, the year, or anything else. I prefer either happy endings or open endings.