"Nobody remembers how the Causality War started. Really, there's no-one to remember, and nothing for them to remember if there were; that's sort of the point. We were time warriors, and we broke time. I was the one who ended it. Ended the fighting, tidied up the damage as much as I could. Then I came here, to the end of it all, and gave myself a mission: to never let it happen again"--,Provided by publisher.