Have you seen Chinese drama Nirvana in Fire. That drama is the best for me. Just beyond the usual drama experience.
Though youve just got to survive the first 3 episode on confusing character introductions and scenario placements. After that its all awesoness in narrative, acting, directing, writing, chemistry, intrigue and visuals. Romance is close to zero but how everything was made is just another level.
Other dramas I highly recommend (in various different genre and country of origin), that are just soo good are: Signal, Misaeng, Ten Miles of peach Blossoms, romantic doctor teacher kim, memory, dear my friends, last match, a love a life, in time with you, secret forest