I was a little shaky on this show after the first ep. but oddly enough, when the police get introduced and the procedural aspects take over, it really began to grow on me. Mostly because of how the tension between the detectives and the returning genius investigator slowly reveals their personalities and motivations.

As for the main duo of teenagers, getting their backstory gradually over the first four eps. made the introduction of 5 much more intense. Watanabe is determined to do something different at each go around and initial fears that this was just some teen angst drama was quickly washed away.