I wanna add these Dramas to those already mentioned, these are with just suupppper good guys as lead. Totally have no mean bone in their body. Just your ultimste prince charming without the pranks, the yelling, the bad blood, the alphamale cliche:
All about my mom
glorious days
across the ocean to see you
that fool
hogo's love
autumn in my heart/endless love
ten miles of peach blossoms, in time with you, reply 1988, reply 1994 - though these dramas did have many other love angles before the main pair got together. With reply series having the worst kind of love traingle ever, cause the guys vying for the girls love are all such good guys.