CooRie, a Japanese pop band formed in 2003, was initially a two-person unit consisting of singer-songwriter Rino and composer Naoyuki Osada. The group debuted with their first single "大切な願い" ("Taisetsu na Negai") on February 26, 2003. After Osada's departure at the end of 2003, Rino continued as CooRie, handling both lyrics and music compositions. Their early works included "流れ星☆" ("Nagareboshi☆"), released in April 2003, which served as the opening theme for the anime television series Narue no Sekai. The band's first album, 秋やすみ (Aki Yasumi), was released on September 29, 2004. Throughout their career, CooRie produced numerous singles and albums, many of which were used as theme songs for anime and games. Notable releases include "あなたと言う時間" ("Anata to Iu Jikan") from the album 秋やすみ, and "光のシルエット" ("Hikari no Silhouette"), which was the opening theme for the anime series Zettai Shōnen. CooRie's discography spans various genres, including blues, classical music, electronic music, rock music, and world music. Their work has been released under labels such as Lantis and Mellow Head (On the Run).