[MiLO]

Some additional info: the game's Limited Edition (ULJS-00534) also contained Drama CD.
Early promo pic of contents:

Spoiler:

http://www.gamer.ne.jp/news/201206240005/

and final:

Spoiler:

http://www.jp.playstation.com/softwa...uljs00534.html

2) オリジナルドラマCD = Drama CD
3) ゲームミュージックサウンドトラックCD = Game Music Soundtrack CD

They must have reverted from 2 separate cases to a single one to hold both CDs:

Spoiler:

http://takasakikikanku.blog.fc2.com/blog-entry-159.html

Drama CD larger pic:

Spoiler:

http://www.gpara.com/article/cms_sho...33013&c_num=14