Re:ZERO Starting Life in Another World Novel Volume 27 was written by Tappei Nagatsuki with illustrations by Shinichirou Otsuka.

After being unexpectedly transported to the Vollachia Empire, Natsuki Subaru finally reunites with the awakened Rem. But their joy is short-lived, as the two become entangled in a massive civil war that engulfs the entire empire. Facing off against Vincent Vollachia, the dethroned emperor, Subaru vows to return to the Kingdom of Lugunica alongside Rem. But upon entering a fortress city, he is ambushed by an unpredictable spiral of deaths and is forced to brutal confront to consequences of his choices.