Hayato was introduced to the world of Cyber Formula when by accident he became the registered driver of the Cyber Formula car Asurada, designed by his father while he recovered it from the hands of mercenaries. The Cyber System registers a unique user for the vehicle at the time of activation and it would take a week to reformat the vehicle for another driver. This was not an option as the race was to be held much sooner. This forces the Sugo Grand Prix team to go with Hayato as the driver for the license race over the team's driver at the time, Akira Hiyoshi. After earning his licence to compete in the Cyber Grand Prix, Hayato becomes the youngest driver to ever compete in the Grand Prix, at the time.

(Taken from Wikipedia)