The game looks awesome and my friend plays a ps2 version in jap, but I'm wondering if you can still play easily if you can't read jap. Like Prince of tennis crystal drive, I didn't need to know any japanese at all to play without any problems.
Yes, you should be able to enjoy some of the gameplay without any problems, as the genre is Turned Base Strategy. Although it may take you a little while to figure out how to play and what not.