Duke Fleed is a survivor of the Fleed Planet who is escaped to the Earth, onboard a mysterious "spaceship", where is raised by Dr. Umon as his adoptive son, and known as Daisuke Umon. Years after his arrival, he's faced with the threat of King Vega and his army, who want to conquer the Earth. With his friends Koji and Hikaru (and later his younger sister Maria Grace), Duke decides to fight back using his best weapon - the almighty Grendizer.

The story is about 16 years old boy Takeshi who recently formed an American football team at the BlueSky orphanage. One day the game is interuppted by a light in the sky. Takeshi discovers he is the son of the king of the planet Apolon, spirited away to Earth by his father's retainer Rabi to avoid death at the hands of General Dazaan. He turns out to have special energy abilities which can control UFO saucers from under the ocean floor, which in turn can become robots that are synchronized to their movements. (Source: Wikipedia)

Three high school girls are putting together a limited-time shop called "PARK" in Japan's Harajuku. One day, aliens come to Earth with the intent to steal the famed district's culture. At the same time, a mysterious girl appears. The three girls band together to defeat the alien threat and protect their beloved Harajuku. (Source: ANN)

An injured man is found in the woods by a girl named Eruruu, and everything about him is mysterious. Without knowledge of his past nor even his own name, he is welcomed to Eruruu's home and is given the name Hakuoro by her grandmother, and younger sister, Aruruu. While the inhabitants of the village have large ears and tails, Hakuoro's defining physical trait is quite different as he has neither ears nor tail, but only a mask that he cannot remove. Soon after he becomes a part of the villagers' lives, a revolution against the tyrannical emperor of the land begins, and the conflict finds its way to his new home. Hakuoro must do whatever he can to save the people and the village that he has come to love, all while uncovering the mysteries that shroud his past. [Written by MAL Rewrite]