The story is unique but then the pacing of the series makes it dull sometimes. At one point I thought the climax was coming but then the buildup stopped all of a sudden, leaving me with confusion and immense disappointment. The most unacceptable part is the ending. I thought the entire backstory would be revealed at last, but then the series suddenly ended with half of the truth remain concealed. I guess it was done on purpose to leave it for Season 2? Not sure if I would give it another shot if there is another season though. Acting of the cast is impeccable though. Yagira Yuya was the reason I watched this series and he never disappoints me. Baisho Mitsuko-san, the actress who played Goto Gin, the grandmother, gave me chills down my spine. The score serves the series really well in heightening tensions and suspense too. Overall is fine but I really hate it when a series is not ended properly because some people behind it want to make a sequel.