i recommend Love beyond the grave if you haven't herad of that already. it's currently airing as well
i'm used to the brightness by now so iy doesn't really bother me. i actually prefer it now over darkness. there are a lot of dramas that are way too dark
the cinematography 10/10, the story 10/10, the acting 10/10, the fighting scenes 10/10.. my only complaint is that it desperately needs a season 2