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 saves him. One day in his new home in Komatsu, he sees the same jet. It's being carried to a nearby Japanese air-force base.
What Do They Want!?
 Mysterious Military Group:
The Xi
ما الّذي يريدونه؟
:المجموعة العسكريّة الغامضة
الزّاي
Wer ist die mysteriöse, bewaffnete Gruppe Zai?
Die Befehlskette der Chinesischen Armee ist in Trümmern
Más y más refugiados
llegan a diario del continente.
Cada día llegan
más refugiados del continente.
Les réfugiés venus du continent
ne cessent d’affluer.
Qual è lo scopo
del misterioso gruppo militare,
gli Xi?!
O que eles querem!?
Misterioso grupo militar:
Os Zai
В чём их цель?!
Загадка вооружённой группы Дзай