Japanese Dramas are just soap Operas with horrible acting and bad Tv effects. The reason why is because of the lack of a major studio to actually produce this crap. They use the same effects and story telling that you see in a Sentai show. Manly these are watched by Old women ( in their 60s) in Japan and girls who like looking at cute guys.
The Japanese even have recognized that J-dramas are full of fail.
Guy 1: I am going home to watch Bleach
Guy 2: Well I am going home to watch a Japanese drama
Guy 1: *laughs* J-dramas suck. Are you a old women or a fan girl type?