Toyota's Prius and Honda's Insight, two of Japan's world-class eco-cars with outstanding recognition and popularity. They show that even eco-cars can run fast.

Shunsuke Hanzawa, who used to be a driver, is now an office worker and still enjoys driving his favourite car, the Hachi Roku, along the Bayshore Route at night. However, at the request of his wife and children, he decided to switch to a Prius. One day, Shunsuke sees a fully tuned Insight and is shocked by its speed.