 It's about a young Japanese man who has recently joined the military to fight the aliens that are invading Earth. By chance he happens to kill an important alien and immediately finds himself transported 40 hours back in time. He wakes up in his in his bunk. Well, as you should know, by simply the commercials for the movie last year, every time he dies in battle again, he goes back to that same starting point. People have compared it to Groundhog Day, but that's an inappropriate comparison. This book should be viewed more as a video game, where the player simply loads up their last save game. You can support 30 Seconds Sci-Fi and my other projects by becoming a patron. There's a link in the description below. It's not a particularly long book, and it's a quick read. And I have to tell you, if it didn't have an excellent movie associated with it, I would consider it forgettable. The protagonist named Keiji Kiriya is not a particularly sympathetic character. He's not even a particularly nice guy. In fact, he's very sexist. Every time he encounters a woman, the author devotes a paragraph to Keiji's thoughts about her looks. He invariably thinks that she should be better looking and that her tits should be bigger, but that he would do her anyway. It becomes conspicuous because he does it every time. As you can tell, I like the movie Edge of Tomorrow better. And I will make comparisons between the book and the movie in a review of the movie, which I will publish later this week.