
S01E01 Crimson Wings
The Xi: unidentified flying objects that are vastly more powerful than humanity's best fighters. Kei Narutani is fleeing Shanghai on an evacuation ship when he's attacked by the Xi, but a mysterious red fighter jet...
Gripen's condition stabilizes when she's near Kei, but nobody knows why. The two of them train for the upcoming test flight using the simulator. If they can pass the test flight and Gripen can fight again, she'll be able to wipe out the Xi before long. But one day, Kei learns the truth about the Anima and the Daughters from an unexpected source.
The mysterious flying creatures known as Zai suddenly appear, and in order to fight the creatures, mankind creates fighter aircraft called "Daughters," as well as the automatic fighting mechanism "Anima," which are shaped like human girls. The story centers on a young man named Narutani Kei, who yearns to fly in the sky, and an Anima considered to be humanity's trump card, a girl name Guripen.