It is a very very good game. I have a repro of it with the English translation.
I have yet to complete it but it is very very good.
There is strategy and the writing/graphic reminds me of uninvited
It is also a import game that has risen in price due to popularity. It probably could be played as an import game but not without a guid.
Look at this on eBay:
http://pages.ebay.com/link/?nav=item.view&alt=web&id=231166040840Sweet Home Nintendo Famicom Japan
Currently for a CIB copy it is at the $70 dollar mark. But I would guess that a CIB copy was going for the $25-30 mark even two years ago before it being a hidden gem more common knowledge.
But for $20 less you can get a translated repro copy
Or free if you put it on a Everdrive minus the inital cost of a ever drive.