Not sure whether if this is new but you can listen to most of the song at the game's website now. Just click the play button at the middle of the screen. The song is pretty amazing. It's much better than Rurika's single IMO.
http://dragonsprophet.jp/<CD info>
Title: Today is The Day
Label: binyl records
AVCH-78044/B(CD+DVD)¥1,680/AVCH-78045(CD+Photobook)Limited Edition¥1,365/ AVCH-78046(CD)¥1,050
(CD+DVD、CD) 1:Today is The Day 2:透明な白 (Toumei na Shiro)
【DVD】Prologue of “Today is The Day” (Recording off-shot、interview)
(Limited Edition CD+Photobook) 1:Today is The Day 2:透明な白 (Toumei na Shiro) 3:Lily (Cover of MONKEY MAJIK's Lily)
16P Booklet photobook
Extras included with all version:
1. Endo Mai original item serial code for「Dragon’s Prophet」
2. Release event ticket
<Tie up information>
M-1:Online game RPG「Dragon’s Prophet」image song
M-1:August ending theme for FujiTV「ミューサタ」Myu-sata
M-2:Ending theme for FujiTV「奇跡体験!アンビリーバボー」Kiseki Taiken! Unbelieveable
<Release event>
7/31 Shibuya Tower Record (Birthday live+handshake)
8/3 Tokyo Dome City LaQua Garden Stage (Mini live+handshake event)
8/4 Diver City Tokyo Festival Plaza (Mini live+handshake event)