This script has everything - good humour, interesting exploration of humanity and justice, excellent character development, solid chemistry between characters, and a mesmerising villain to top it off.

The earlier cases may come off as small and insignificant. Unlike most police procedurals, only a handful of cases revolve around a murder - some are probably just misdemeanours. What's interesting in these earlier episodes is that there are clues, characters and concepts dropped in which feature in a more significant way later on. I think that's the appeal about this whole series, because the fact that things that occurred in an earlier episode have a bearing later on makes these characters' lives feel real and present.

There's a lot I can say about the story, from the very nuanced depictions of not just the main characters but also of their female boss, who's probably one of the most convincing and well-rounded female police bosses written in Japanese TV. It's also full of ideas that's worth further exploring on a rewatch, like the idea of smaller crimes not being insignificant, the lack of (and urgent need for) an appropriate witness protection program, the prejudice against migrant workers (which is applicable to most developed countries), the dangers of internet vigilantism (and how apt it was to get Suda Masaki to do this role after "Class 3A"), or how fragile and vulnerable justice is, even for people who society expects to uphold justice.

Suda Masaki is a scene stealer, and his portrayal of the insolent and enigmatic Kuzumi makes him one of the best villains to come out of this genre (I don't think that's a spoiler since in his first appearance he shows an underage kid a drug). It will be such a shame not to have a second season of this.