Edit:
After 17.5 hours so far and reaching the end of the game for the first time, I can say that this is one of the most well-planned mystery puzzle games I've ever played. Seriously, stop reading reviews and go play this for yourself!

Original Review:
I haven't even finished the game yet (just finished chapter 3) but I would reccomend this to anyone with any interest in deduction puzzle games. The hints are very useful without giving things away (unless you want them to) and the story so far is really intriguing. I'm excited to see what happens next!

The music and art style are both Gorgeous btw, I especially love the character's sprites for walking around and investigating.