I have mixed feelings about this drama. While it started off okay, the ending left a lot to be desired. I didn't really enjoy this drama as much as other detective dramas such as Galileo or Brain. Like other reviewers, I agree the acting was really good. Everyone portrayed their characters realistically and consistently. The actress who played Kurumi, Hashimoto Ai, was especially good at showing both her ditzy and intelligent sides. The story and plot was all right. There was no exciting twists, though the villains were pretty unique. It was just your standard police procedural drama. For me, the drama went off the rails towards the end, with no explanations for the events that occurred and leaving some subplots unresolved. There were some implications about one character's past that seemed to come out of nowhere with no setup or foreshadowing. The end strongly hinted at a Season 2, so maybe things would get resolved then. Overall, this drama was meh. It has some great elements, but they weren't executed to their greatest potential. Some of the storytelling choices, especially at the end, make no sense, which soured my feelings towards the drama.