Bakusou Kyoudai Let's & Go MAX

Retsuya and Gouki are two brothers who share the same racing ambitions as Go and Retsu, aiming to win championships. They face various challenges set by an evil organization, but instead of focusing solely on the competition, they also try to enjoy racing with their friends, who include Go and Retsu. Along the way, they showcase their competitive spirit and work together to defend their sport against any threats.