The premise of the show is good, I was really excited for it.

The show is decent, Towards the end the story imo started to get worst. I wasn't a fan of the ending at all.

The casting for the show was good, Kaku Kento is my favourite Japanese actor right now and he was great, I've really only ever saw him in more comedic roles so this was a nice change.

The best thing about this show is the soundtrack.
This was the best soundtrack I've heard for a drama, Whoever decided to choose the songs from the 60s by some legendary artists did such an incredible job.