リアルワールド

"リアルワールド" ("Real World") is a song by nano.RIPE that served as the first opening theme for the 2012 television anime Jinrui wa Suitai Shimashita (Humanity Has Declined; 人類は衰退しました), which was animated by AIC ASTA.

Lantis released the song on July 25, 2012 as nano.RIPE's fifth single. きみコ wrote the lyrics, and nano.RIPE arranged the song. The single also included "ユートピア" and "アンサーソング", with "ユートピア" used as an image song for Jinrui wa Suitai Shimashita. "リアルワールド" was later included on the album "涙の落ちる速度" and reached No. 43 on the Oricon weekly singles chart.