I haven't seen any historical Japanese dramas (I am planning to start
Taira no Kiyomori, but I'll admit is not because of the story, but three of the few Japanese actors I like are in it.
Romance...eh...hmmm...Well, this
Nagareboshi is sort of romantic, but you have to let go of Korean romance (which is awesome even if I OD on it sometimes...lol)
I did like
Liar Game (but I've been wondering lately if it was solely because Matsuda Shota. I sure can't stand the female lead to this day...lol But I did learn to tolerate her)
I also liked
Love Shuffle
Buzzer Beat has some romance in it too.