Photon Earth is a young and gentle boy with superhuman strength and "Baka" (meaning "idiot" in Japanese) scribbled on his forehead (apparently by his troublemaking friend Aun Freya). One day, he finds himself engaged to the beautiful fugitive pilot Keyne Acqua after writing "baka" on her forehead. And that's the least of his worries as he must protect both Aun and Keyne from the evil Papacharino, who seeks to steal the secrets of "Aho" (another word for idiot) energy from Keyne's grandfather's ship. (Source: ANN)

According to the theories of oneiromancy, dreams of dragons represent the struggle of losing yourself to your own anger. Fittingly, Souya Kuroi wakes up from a nightmare of a massive dragon destroying everything around him in a blaze of rainbow colored light. After being told that he lost his parents and memory in a strange accident, the waking world becomes another nightmare in itself. With this dream being his only memory, he has no choice but to be taken care of by his two strange guardians: the spunky and energetic maid Ginko, and a huge cat known only as "Sensei." His new life is turned upside down when the denizens of Saromisaka City are beset by a teddy bear-shaped UFO. When military power proves to be ineffective, seven mysterious people rise up to fight off the monstrosity. These heroes destroy the invader in a flurry of rainbow colored lights, the very same lights that Souya saw in his nightmare. With the alien threat repelled, these seven strangers find themselves facing a new adversary: Souya. Swearing vengeance upon the people who decimated his old life, he begins his crusade against these "heroes" and becomes embroiled in a struggle of galactic proportions. [Written by MAL Rewrite]

The Garadain Empire has exhausted the primary resources of their native planet, so they send different space expeditions to find a new world where to live. One of their main objectives is planet Earth. However, Zeku Alba, an alien scientist, decides to rebel against the imperial rule and flees towards the Earth, where he gathers a group of youngs gifted with the power of "psychogenesis", an ability that consists in creating solid matter from mental energy. The most gifted of the squadron is Isamu, a young orphan whose family was killed in the first attack of the Garadain Empire. He is able to generate the powerful robot Govarian, an armor with which he can battle the alien monsters and is able to regenerate thanks to the psychic energy of the pilot. Helped by two other robots created by his team-mates, Isamu, aboard the robot Govarian, defends the Earth in the long war against the alien invaders. (Source: Wikipedia)

Kananase Yu is just an ordinary high-school student. Since he has mysterious inside knowledge about piloting a mecha, he is recruited by the International Military Organization as a potential test pilot for a new mobile armor. However, apparently there are other young recruits around his age, including one of his classmates, were recruited as test pilot as well. Now Kananase Yu must prove that he is the best to be the test pilot. (Source: ANN)