You are a young man who lives in Japan and likes driving trucks. There is a competition of truck drivers who deliver goods all across the country. Willing to impress your girlfriend Yukie, you decide to participate in the races and to win the title of the best trucker in Japan.

Dekotora is short for "decorated truck", and this racing game consists not only of driving your truck through the highway, trying to be faster than your rivals, but also of buying various stuff for your truck and decorating it. Depending on your results in the races, you can buy truck parts and customize it the way you wish.