Shirogane Takeru found himself inexplicably transported to a world that resembled his own in many ways, with one major difference: For nearly 30 years, mankind has been at war with the alien BETA, who have succeeded at wiping out over half of humanity and had nearly captured the entire Eurasian continent. As Takeru tried to come to grips with this bizarre new reality, he realized too late that the majority of humanity will be abandoned with the Earth, as the chosen few escape to the stars, hoping to find sanctuary.

Now, equally inexplicable reasons, he finds himself returned to the first day of his time in this alternate world. Will the experiences and knowledge he has gained allow him to make a difference?
I think that Shirogane's addition to the 
squadron will be a boon to us.
.أعتقد أنّ إضافة شيروغاني للسرب ستكون نعمة لنا
Ich denke, dass Shiroganes Aufnahme
in die Staffel ein Segen für uns sein wird.
Yo opino que Shirogane será
todo un aporte para el escuadrón.
Yo opino que Shirogane será
todo un aporte para el escuadrón.
Je pense que l’arrivée de Shirogane
va créer une émulation bienvenue.
Personalmente, credo che l'aggiunta di Shirogane 
alla squadra sarà di stimolo per noi.
Acho que a adição do Shirogane ao esquadrão
será uma bela força para nós.
Думаю, перевод Сироганэ даст 
нашему взводу новый толчок.