One day, a handsome alien named Goo arrives on Earth and claims that he escaped a genocide from one of Earth's twin stars. Following Goo was a giant monster who attacked Taishi's home. Goo hands Taishi a special transformation item, turning his entire body with a special wheelchair armor.
Takeshi Tsuruno (Ultraman Dyna) as Gen Morimiya, Taishi's father, and an engineer working outside of Tokyo under Moriyama Motor. In order to grant his son's wish to become an astronaut, he is currently developing a special space rocket.
Karasu Hayashi (Ultraman Z) as Phos also known as Goo, a handsome alien from the Maiden Tribe of Planet Alert. Currently trying to escape from Eltron Tribe, he came to Earth to Earth with a mission, to give Taishi the ability to transform. Also he has powers that he doesn't even notice.
Wada Sohkoh (Liar Game, Shin Ultraman) as Sakamoto Motou, a professor at Asahi Sports University and Gen's friend who persuaded Taishi to participate in wheelchair racing.
[Source: Hero Club]