re:ZERO - Starting Life in Another World, Volume 1: A Day in the Capital (Re:ZERO - Starting Life in Another World #1-5)

Subaru Natsuki was just trying to get to the convenience store but wound up summoned to another world. He encounters the usual things-life-threatening situations, silver haired beauties, cat fairies-you know, normal stuff. All that would be bad enough, but he's also gained the most inconvenient magical ability of all-time travel, but he's got to die to use it. How do you repay someone who saved your life when all you can do is die?