It seems to be an anime-inspired point and click adventure style game. With lots of shots of underwear. Seriously - we don't know Japanese, but even the opening montage has a bunch of it. It may be an AO game, but frankly we can't tell, so buy with caution.
NOTE: All photos depict good condition items only; actual product may vary.
Used EVE Burst Error [mini art book] (good case, poor instructions)