Rem is a devoted maid serving the Roswaal mansion in the fantasy world of Re:Zero. She is a member of the Demon Race known as the Oni and has a strong sense of loyalty, especially towards her sister, Ram, and the protagonist, Subaru Natsuki. Despite her initially hostile demeanor, Rem is compassionate and protective, often putting others’ needs ahead of her own. Her exceptional combat skills and magical abilities make her a formidable ally, but her greatest strength lies in her unwavering support and love for Subaru. Throughout the series, Rem grapples with her feelings of self-worth and her role in a complex world filled with challenges and dangers.