Maybe I sound generous, but seriously one of the compelling SP I have ever watch.

Acting
I thought Nomura Mansai acting is a little bit over the top with his voice and expression at first but once I got used to it, it makes the watching more interesting as it brings the character, but doesn't mean I am at peace with it completely, it is just adequate. But the storyline surrounding the whole event is just so well written that the two main leads acting really stand out to me. Oizumi Yo surprised me, because I've seen him in other dramas and his acting is pretty much just the same, not bad but the style is the same, he did the same here as well but it really suits his character one of his best portrayal.

Scriptwriting
I really have to praise the scriptwriting here, it's hard to write a mystery without the tendency to be too mysterious or it might ended up as too obvious but the flow of script is very witty, work as the required humor in any drama but this humor was not written just for the sake of requirement it was actually applied according to the plot unravel. Will forever remember that one scene that I laugh and later on backfired on me.

Directing
A good story telling need a good directing and it is excellent or else I don't think this SP can be shaped too perfectly like this.

It was one of my favourite watching experience and will for sure be a benchmark for any drama or movie I watch in the future.