^ I don't know is it? what I do know is there is no way in hell deen could release grisaia not with all the yuri,yaoi, and shojou tites they released look for yourself.
http://myanimelist.net/anime.php?p=3...=0&em=0&ed=0&c[0]=a&c[1]=b&c[2]=c&o=3&w=1&show=0
there's a sample of the manga on frontwing's website. gives you an introduction to all the characters
http://frontwing.jp/product/grisaia3.../09_comic.html