Heiji and Rei are bad boys who were separated from their parents when they were young and were taken in by Father Yajima, who runs a church in Osaka. He steals a bag from a man and tries to escape in a Super Cub , but the man chasing him on a three-wheeler at a tremendous speed easily retrieves the bag and says, "I'll do something good. " Pass small chunks. It is said to be the "sixth toe bone" of a genius driver. The two buried their "finger bones" in a time capsule, and together with Wa, who also grew up at Yajima Church, made a vow to "become the best in the world by competing in car races."

Then time passed and it was 1970 . Rei, who hadn't heard from him for five years, returns with a large package to Heiji, who has been fighting every day as the leader of the cheering party . The identity of the luggage is a Mercedes-Benz engine extracted from the yakuza boss's car . Rei says that he will use this engine as a base to build a vehicle for racing.

From that moment on, Heiji, Rei, and Kazu rush into the world of racing to fulfill their childhood vows. Encountering people, speculation, and getting involved in various things...