All You Need Is Kill

Story:

The "Mimics," an alien race that has taken over most of the planet and is out to obliterate the human race, are the enemy that the world is at war with. Keiji Kiriya is a recent addition to the United Defense Force, fighting these so-called "Mimics." Keiji and his unit come upon "Mimics" on their first day of deployment, and they are all slain. Was it all a dream, though? Every time he dies, for some reason, he comes back to life and is transported back to the day before the fight. How can Keiji break free from this never-ending loop and why does this keep happening to him? Note: Nominated for the Eisner award for the "Best U.S. Edition of International Material – Asia" in 2015