I have always considered Japanese television drama to be mostly anaemic affairs, and have come to expect on average only one series per year that has a genuinely interesting and original script. In 2012, there was Legal High [リーガル・ハイ] by the screenwriter Ryouta Kosawa [古沢良太]. In 2013, there was Saikou no Rikon [最高の離婚] by Yuuji Sakamoto [坂元裕二]. 2014 was a dry year in terms of original screenwriting, though I quite enjoyed the adaptations of two jousei manga – Shitsuren Chocolatier [失恋ショコラティエ] and Kyou wa Kaisha Yasumimasu [きょうは会社休みます].
The year 2015, however, was a different story. There were no less than 3 television dramas I have a high opinion of, as well as a host of other titles of lesser artistic merit that I nonetheless enjoyed.
Mondai no Aru Restaurant [問題のあるレストラン] by Yuuji Sakamoto
The first of these three is Mondai no Aru Restaurant. The screenwriter Yuuji Sakamoto is active in a number of fields from movies, manga, anime, live theatre to games. Mondai no Aru Restaurant is, in my opinion, his best work on television to date. It is much more polished and thought-provoking than his earlier work Saikou no Rikon.