Hiroshi Sakurazaka (桜坂洋) is a Japanese author. In 2004, he published the light novel All You Need Is Kill, which was adapted into the 2014 film Edge of Tomorrow starring Tom Cruise and Emily Blunt.
Major Bill Cage is an officer who has never seen a day of combat when he is unceremoniously demoted and dropped into combat. Cage is killed within minutes, managing to take an alpha alien down with him. He awakens back at the beginning of the same day and is forced to fight and die again... and again - as physical contact with the alien has thrown him into a time loop.
When a massive alien flower known as "Darol" unexpectedly erupts in a deadly event, unleashing monstrous creatures that decimate the population of Japan, Rita is caught in the destruction—and killed. But then she wakes up again. And again. Caught in an endless time loop, Rita must navigate the trauma and repetition of death until she crosses paths with Keiji, a shy young man trapped in the same cycle. Together, they fight to break free from the loop and find meaning in the chaos around them.