"Nanatsu no Umi wo Wataru Kaze no yōni" (七つの海を渡る風のように, lit. "Like the Wind That Cross the Seven Seas") is a song by Japanese singer-songwriters Rina Aiuchi and U-ka Saegusa. It was released on 11 April 2007 through Giza Studio, for the soundtrack of the Japanese animated film Detective Conan: Jolly Roger in the Deep Azure. The single became the duo's second single, following "100 mono Tobira" in 2006, which also served as the theme song to the anime series. The single reached number six in Japan and has sold over 36,587 copies nationwide.