Re:Zero kara Hajimeru Isekai Seikatsu adapts the first nine volumes of Tappei Nagatsuki's light novel series of the same title. An edited version of the series, titled Re:Zero kara Hajimeru Isekai Seikatsu: Shin Henshuu-ban (Re: Zero -Starting Life In Another World- Director's Cut), received a rebroadcast starting January 1, 2020. Twenty-five episodes of the original series were combined into thirteen 49-minute long episodes with some scenes being slightly extended. The last four minutes of episode 13 featured new scenes that were later included at the beginning of the second season.