Well unless its a 'custom' it is definitely PlaRail if you go by the track, piers and plakids in the foreground. It looks a bit like a modified version of the 500 shinkansen maybe, perhaps a new shinkansen variant just in service or about to be released to service in Japan?
Either way it seems to have some interesting new features for a PlaRail model, simulated bogies on the sides of the carriages and what looks to be a far more modern/detailed pantograph depicted on the roof of the leading/trailing car.
I'd definitely want to add it to my collection for sure
Thank you so much Plarnold for the translation and explanation. It is strange that it was showcased in a 2002 video but then fell off the radar by anyone. I find the roof sticker odd with what looks like a PlaKid laying down on his back. And are those really fake bogies (I hate fake bogies) or some type of wheel coverings for aerodynamics. Guess we will never know.
Apparently this train is called the Blue Shark and was presented at the 2002 Plarail Expo in Japan. They even mention under the pictures there was a video that was played at the Expo on it. Now that is something I would like to see. Anyone know of a video of the 2002 Expo?