This is the artbook of Yellow Star (Cool Devices episode 7). The character designer for this episode was Yasuomi Umetsu, so it can be seen as a precursor to Kite. One day I hope to translate this book.
This gallery contains the contents of the Art Book and some of the files from the CD. The CD contained some wallpaper, icons, and a website where you were asked questions about the Art Book and answering correctly revealed various information and images.