[Myrkul]

I don't think the product related to this album is "Kenpuuchou".

The very first game on the series was released on PS1 in 1998, and was called "Tokyo Majin Gakuen: Ken Kaze Tobari".
While "Tokyo Majin Gakuen: Kenpuuchou" is the DS remake/port (of the 3rd PS1 game?) released on 2008.

The franchise goes like this:
06/1998: [PS1] Tokyo Ma-Jin Gakuen Ken Kaze Tobari
04/1999: [PS1] Tokyo Ma-Jin High School Oboro-Kitan (romanization used on the game box)
07/2000: [PS1] Tokyo Ma-Jin High School Kenpu-Cyou Emaki (romanization used on the game box)
01/2002: [PS1] Tokyo Ma-Jin High School Gehou-Cyou (romanization used on the game box)
04/2004: [GBA] Tokyo Ma-Jin Gakuen Fuju Houroku
08/2004: [PS2] Tokyo Ma-Jin Gakuen Gehouchou Keppuuroku
08/2008: [DS] Tokyo Ma-Jin Gakuen Kenpuuchou
"TBA": [DS] Tokyo Ma-Jin Gakuen Teisenjou