Takuma Takewaka

Kannami Yuichi is a fighter pilot who is newly transferred to Urisu Base to replace a pilot who died in battle. Yuichi strangely does not age like normal people would, and the base commanding officer Kusanagi Suito seems to have the same ability. They are revealed to be Kildren, a group of ageless adolescent pilots who are genetically-created to engage in endless dogfights between two companies, Rostock and Lautern. (nihonreview.com)

Aoba is a young girl who loves to build models of robots. She lived alone with her grandmother until her grandmother passes away. Shortly after she is kidnapped and brought to a secret base where she discovers a huge robot. The piloted robots fight against Ancient-Jinki in The Grand Savanna, but the true meaning behind the fights is hidden. Aoba works hard at the base so one day she can pilot one of the robots and discover these secrets. (myanimelist.net)