I was referring to the True Cross Character Guidebook. I tried to find it in english to show you, but it seems I can only find the french version which is the one I have. Amazon doesn't have it in any other language and now I'm shocked it's not being translated! D: It has all the character profiles with updated info up to volume 12 I think. There's even interviews and personnality quiz.
As for the novels, the first one was also translated in french... don't tell me it's not in english either? wth?? I'm sorry for that, now I feel stupid...
Now I'm wondering if I should... I don't know, scan the guidebook, translate it and post it? It would be a good chunk of work though...
Hello. Yes its a called Kazue Kato Art collection Iroiro Basically a how artwork from all the author work up till when it was publish. You can find it on amazon, and ebay but i purchase my on cdjapan.co.jp
Here is a link to the other judge's comments and details on the event if you're interested in applying. Apparently the reward is a huge cash prize and the chance to get your manga published in Shonen Jump (same magazine MHA and One Piece are published in). Also it should be noted that the only international languages accepted are English, Spanish, Chinese (Simplified / Traditional) and Korean only.
What's your region? And are you purchasing via local retail or online? On the US version of amazon, the volumes can be bought for the regular sale price.