http://game.goo.ne.jp/retro/title/RG...016/index.html
This site says it's a Si-Fi ADV game.Considering it was released on PC-9801,I think it's safe to guess this game is some kind of text adventure game.
Also the link below have some info:
http://www.asahi-net.or.jp/~uu3s-sit...oukoku3-3.html
Amen to the composer...
