I have read many detective stories like short stories from our local magazines and especially inspector Jamshaid series, but it s the best I have ever read. It is the first one with super natural elements. The character of Yakumo and Gatou are sensible and experienced while Haruka and Ishii are in process of learning and they try to become better, some times even point out things which forces the formers to reconsider. There are many twists and face palm moments which teaches us to remain attentive and observe the situation deeply which is a kill that can help us in many real lifesituations. Overall it is entreating and educational.