You can see how to order the book here.
As a thank you gift, I offer this original drawing. It's not finished art but just line art. Still, it is the original art from the book, I scanned it then finished with Manga Studio 4. You order the book and apply the present, if you are lucky one, she will be yours.
I posted how to apply for this present on Coffee Party's FBpage., here. If you like - join it! :)