Paranoia (Eiko Shimamiya song)

Paranoia is a song performed by Japanese singer Eiko Shimamiya. It was released as a single on August 27, 2008, by Geneon Entertainment. The song served as the opening theme for the anime series Higurashi no Naku Koro ni Rei.

The single also included the B-side track "escape", also performed by Eiko Shimamiya. "Paranoia" is characterized by its intense and haunting melody, reflecting the psychological themes of the anime it accompanies. It is a notable song in Shimamiya's discography and within the broader anime song (anisong) community. The lyrics of "Paranoia" are generally interpreted as exploring themes of distrust, fear, and distorted perception, aligning with the suspense and horror elements present in Higurashi no Naku Koro ni Rei.