 Upon arriving on Earth, Exkaiser and his team, the Kaisers, put their spirits into vehicles all over Japan to create physical bodies for their energy-based forms.Exkaiser inhabits a car belonging to the Hoshikawa family and befriends a third grade boy named Kouta Hoshikawa.Exkaiser and his allies must unite their powers in order to fight the Geisters and prevent them from stealing Earth's artifacts.