This who-done-it quickly became who-cares. While there is a certain intelligence throughout, the plot is more tedious than taut.
True salvation here is in tighter editing.
The reader is so exhausted by the redundancy of the plot that the finely-drawn characters get lost.
…more Ditto for the intriguing juxtaposition of ancient Japanese culture and modern, fast Tokyo---bogged down by excessive and repititive plot.
Tension between Ayane, Hiromi, and the ghost of Junko builds well. However, this is not enough to carry a weak and rather naive story.
Dynamics between the police and professor were way overdone.
Overall, as an avid reader of this genre, I am underwhelmed. More tepid than chilling. (less)