This mysterious youth was sent from the L1 space colony cluster to fight against Oz. He goes by the alias Heero Yuy, after the martyred leader of the space colonies; his real name, like almost everything else about him, is unknown. Heero has been trained since childhood for his role as pilot of the Wing Gundam, an upbringing that has made him cold and ruthless. But thanks to his years of training, Heero has become a perfect soldier equally skilled in personal combat, explosives, and computer hacking. The pilot of the Wing Gundam, the boy known as Heero is the most grim and serious of the Gundam pilots. Raised by the scientist Doctor J, Heero has been trained since childhood to be a ruthless killing machine. Though Heero's upbringing hasn't quite managed to squeeze all the compassion out of him, he is nonetheless callous towards his allies, and cold-blooded towards his enemies, and almost suicidally careless of his own life. His unexpected reluctance to kill Relena, after she discovers his identity, is the first step in Heero's gradual reclamation of his own humanity.Heero Yuy was raised from a young age to become the pilot of one of the colonies' revolutionary mobilesuits made out of Gundanium Alloy (the Gundams). He was raised a killer and according to some sources, his trainer's name was Odin Lowe, but he never had a real name until then.When Heero arrived on earth in "Operation Meteor" to accomplish his missions he knew nothing of the loving and caring emotions that were displayed to him by Relena. Under instructions that he must keep his identity secret, he sets out to kill her for seeing his face.