Akira moved to LA with his mother when he was a child. The reason for this was the accidental death of his father who was a stuntman. after growing up, akira became a professional motocross racer and participated in the national motocross championship. but his mother suddenly dies. akira is so shocked that he leaves the world of motocross behind and retreats to his home for a while. he then decides to return to japan to seek revenge against gou, the man responsible for his father’s death.