Let me start with the things I really enjoyed about this. I love that Fuyuki is not your typical shoujo heroine. She doesn't start crying at the drop of a hat, and she doesn't spend the whole series anguishing over her feelings. But she's also not some hardened adult, and you still see times where her 17-year old self emerges. She doesn't bat an eye at handling brutally murdered corpses, but she's terrified of ghosts. Due to her background, in some ways she's much younger than 17, and in other ways she's much older than 17.
Regarding Kuzi, I love that he is so protective of Fuyuki, and yet he still respects her decisions to help others when it's going to put her in danger. Although he wants to keep her safe, and he at times tries to coddle her due to her age, when the chips are down he relies on her and trusts her to know what she's doing. Once he realizes his feelings for her, he doesn't try to hide them or push her away, although he also doesn't try to force her to accept them due to her young age and him wanting to wait until she's an adult and ready.
I also really enjoy the interaction with the supporting characters, especially the creepy doctor with his internal organs fascination, lol. The humor is great and I had times where I giggled out loud reading this.
Now, on the the negative parts. I wish the stories were a little more fleshed out. It seems that every time a mystery comes up that might become a little harder to be solved, it ends up resolving very tidily and fast instead.
Even the big major unsolved case that had been languishing for 12 years and had been the source of Kuze's guilt and pain ended up being solved very quickly and neatly.
The art is okay. I'm not always a fan of how long and angular the characters faces are drawn, but I got used to it and it stopped being distracting after a while. I really want to see more of Fuyuki's backstory be scanlated, and I hope it will have a little more edginess to it when it gets there, but with only 1 more volume left to be scanlated, I'm not sure how in-depth it will go.
All in all, I'm truly enjoying this series and I really hope it will be fully scanlated soon. Don't expect it to be incredibly deep or dark, despite the subject matter.