The book’s pretty big, I think bigger than A4. If I were not a big fan of the game, I would be very disappointed with the artbook.
It’s this thick.
The contents are pretty simple: illustrations gallery, event stills with the dialogues fro mthe game, character designs, and a couple of pages of the interview with the creators. I’d say barely anything new.
Some of my favourite illustrations:
– full image of the artbook cover
Event stills page example:
Character designs:
Interview:
If not for the artwork, I’d sell this one as well. For now I’ll keep it, but I was hoping for more text/new info. But I also suddenly felt like buying the game myself.
usa-chan man 
So pretty!! I wish I could have this book, but the price is too much for me right now T.T. Thank you for sharing your thought about this artbook 😀
You’r welcome! Well, the price is usual but shipping is really expensive since it’s pretty heavy^^