Waka stands as the determined rival to protagonist Rin Shiguma in the high-speed world of mini four-wheel drive racing. After Rin's decisive Grand Prix victory shatters Waka's long-held record for consecutive wins, the thwarted champion retaliates. He strategically assembles a cadre of enigmatic racers specifically tasked with challenging Rin's newfound dominance. Among this hired group operates the skilled Mr. Mecharic, possessing distinct abilities crucial to their competitive mission.