Koutarou's father is trying to train his son in the art of the ninja, but a mis-hit bomb accidently damages a shrine and releases a great demon that Eldoran had been keeping contained. Eldoran manages to contain him, but one of his servants manages to escape as well, and now attempts to free his master. To stop him, Eldoran grants the three mecha Gotiger, King Elephan, and Mach Eagle to Koutarou and his two friends, as well as suits that grant each of them a special power. Miracle Ninja Ganbare Team is born! (Source: starfox.net)

The year is 20XX. Mysterious huge robots called Giant Robo (GR) started to appear all over the world and destroy cities. The earth was covered with fear. And their next target is Japan! The hero of this animation Daisaku Kusama, who works in a diving shop, encounters a mysterious girl, simply called V who leads him to make a contract with an enormous robot Giant Robo 1 (GR1) at the ancient ruins (Minami Yonaguni Island) in Okinawa. He made a contract with UNISOM (good guys) and was approved to be a commander of GR1. Thus his battle has begun against GRO (bad guys) and creates a lot of dramas. Before long, Giant Robo of the 21st century will ask the world the true meaning of its power. (Source: AniDB)

The stories that lie within the cards come to life...

The story is set in the year 2050 AD, and mankind has been steadily advancing its space technology. However, the planet is suddenly set upon by a mysterious enemy: the forces of Eldar, who came from 250 years in the future. In their time, 2300 AD, their planet Eldar was invaded by Earth, and soundly defeated by Earth's Trinity Energy, a mysterious energy used in their weaponry that possesses power many times that of a hydrogen bomb. The Eldar people's objective is to steal this Trinity Energy before it can be used against them. The Eldar forces begin by taking over Jupiter's moon Io, one of the places humanity has immigrated to by then. After that, they begin to attack Trinity City with their legions of Cosmosauruses in order to steal the Trinity Energy. Toshiya and his friends use God Sigma to protect the planet and the Trinity Energy, and the battle evolves into a long war to retake Io. (Source: Wikipedia)