It has been a while since the release of this book. Pixiv in association with Kotobukiya and Danny Choo made an international contest to choose the artists who would appear in this 4th volume of OTACOOL, a magazine-book aimed to “otaku” of all around the World.
These were the illustrations:
And you can see a full review of the book in Ninamo’s blog here (Spanish only).
Half a year passed since this event, but it was a very special date for us, since it was the first time we published something in Japan and we are still really thankful for this.