family affairs as her mother has no business sense. She is very intelligent, headstrong, and independent, and can very bratty, but is occasionally insightful. She seems very attached to Kotobuki, and has been following her and the others since their first meeting. She often cruelly teases Shouka. Despite their differences, she and her mother love each very much. Ross Corpul Ross Corpul is a effeminate, wealthy man with relations to the army, and he is Raimon's adoptive father. Raimon left his home at young age because his family had too many mouths to feed, and he asked Ross to adopt him; in return, he would "become the best elite and help you do bad things." Intrigued, Ross accepted his offer. Ross claims that Raimon used to throw bombs into his study. Ross often enjoys torturing his son and Kotobuki, and often steals and patents Raimon's inventions. He is quite a cunning lady-killer. and Rikuro and Kayo are two mysterious beings shrouded in an enigma only revealed in the final volume. They are two artificial shape-shifting beings containing the two brains of Tsubasa. They are identical twins, and Kayo appears female while Rikuro is male. Rikuro was captured by the military years before, and he was soon wired as 'F'; the mother computer of the military. He appears much sooner in the series then Kayo, as the mysterious friend of Raimon. While Kayo is mostly shrouded in mystery for the series, there are several hints to her identity, particularly regarding the robots Kotobuki, Raimon, Hil, and Shouka encounter, who identify her as 'master'. Though Rikuro emphasizes with humans, particularly Raimon and Kotobuki, despite the military's treatment of him, Kayo ends up hating humanity for taking her brother away from her- her feelings are very similar to Hil's for Ann. Rikuro is ultimately destroyed by the military, to Kayo's fury. Ann Ann was in charge of the orphanage Kotobuki lived in until the military burned it down. Little is revealed about her until the end and although she's "dead" for most of the series, her role served as a catalyst and major angst factor. She was Hil's older sister, and he dearly loved her to the point of obsession. She left her family to open an orphanage for the nameless, leaving behind a stricken Hil. Once Hil joined the military, he dedicated a lot of time to trying to find her, and