Please do, by all means! Crazy that it's from 1988 / 1989! Long before Greywulf's 3 Dice Dungeon or Ganesha's Four Against Darkness. Way ahead of its time! Well, sorry for the off-topic comment. Looking forward to this one here, though!
Thank you! I did a quick search, it seems pretty hard to find and there were several versions made. Any idea where I can find more information aside from BGG?
I’m afraid nowadays most of them are only available from domestic vintage retailers, secondhand stores and online auctions. They must be pretty expensive, though... The original materials of the IP’s spiritual successor, Family Dice, seem to be still available (in Japanese) on the designer’s site: