Eh, for a demo made in 1999, it does its job, the story seemed quite interesting at least, although four minutes aren't usually enough. 3D CGI in anime has always been uncommon, most don't associate a 3D production with anime, unlike US, Europe or even China and Korea which have a good number of 3D CGI animated series. Even despite being made in 1999, the animation was passable, considerably better than lots of terrible stuff I've seen. They had a repertoire of better songs to put in this, but sadly the 1999 trends on music, especially on movies was dreadful. Shiro's voice is almost insufferable and voiceacting isn't the best you could find.

As I said, four minutes aren't usually enough to talk about characters despite basic and superficial stuff, I didn't find them bad though.

If you have nothing better to do than to look 3D shorts of pre 2000s era, you might want to watch this, or other stuff like Pixar's shorts.