Keiichi's sister, Megumi, is going to show the Queen of the Highway her "Secret of Speed" in a race pitting the Queen's state-of-the-art bike against Megumi's little machine! But Megumi calls in a pinch-hitter to race against her rival: the racing team of brother Keiichi and goddess Belldandy! What can the Queen possibly learn from racing against Keiichi's super-heavy bike with a side-car? She'll certainly get more than she bargained for...!