All You Need is Kill

The volume in English Manga story: Kiriya Keiji was recruited into the United Defense Forces to fight aliens called Mimics (the imitators), and their goal is to exterminate the human race. Kiriya Keiji, in his first battle against the aliens, is killed on the battlefield, but in an inexplicable phenomenon, he wakes up immediately after being killed on the battlefield... and thus he kept cycling in an endless loop, every time he dies, he wakes up the day before the battle and repeats the same events. After that, he will meet Reta Fratasaki, a girl recruit and the leader of the strongest unit confronting the mimics.