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 guess you've got energy to burn, 
thanks to your exemption from the draft.
.يبدو أنه لديك طاقة إضافية بسبب الإعفاء عنك
Dank deiner Befreiung von der Wehrpflicht
scheinst du Energiereserven zu haben, was?
Te sobra la energía gracias
a tu exención del reclutamiento, ¿eh?
Te sobra la energía gracias
a tu exención del reclutamiento, ¿eh?
Quelle belle énergie !
Un effet de l’exemption, sans doute ?
Avrai delle energie in eccesso, 
grazie al tuo esonero dalla leva.
Soube que está com energia sobrando,
graças à sua isenção do recrutamento.
Освобождение от призыва 
оставило в тебе много сил?