The first novel focuses on Lugnica king candidate Crusch Karsten, her knight Ferris, and a boy who had a profound influence on their lives. That boy is Fourier, the fourth prince of Lugnica. (Source: ANN)

Re:Zero kara Hajimeru Isekai Seikatsu Ex has been published in English as Re:ZERO -Starting Life in Another World- Ex by Yen Press under the Yen On imprint since November 21, 2017.