After his promotion as the ambassador of Mini-4WD to America, Mini-4WD Fighter IV are searching for his successor, at the factory trips attended by 4WDs players he found a young man who held a hard passion towards Mini 4WD. Impressed by his passion, Fighter IV gave his title and the young man become the Mini-4WD Fighter V. Fighter is someone who act as an advisor to Mini-4WD players and a judge in mini-4WD tournament.