Re:Zero kara Hajimeru Isekai Seikatsu, often simply referred to as Re:Zero, is a Japanese light novel series written by Tappei Nagatsuki. It follows the story of Subaru Natsuki, a young man who is suddenly transported to another world and discovers he has the ability to rewind time upon his death. The series explores themes of perseverance, sacrifice, and the complexities of human emotions. It has been adapted into an anime series, which has garnered significant popularity worldwide.