"After Dark"(アフターダークAfutā Dāku) is a song by Japanese rock band Asian Kung-Fu Generation. It was released as the second single of their fifth studio album, World World World, on November 7, 2007, nearly a whole year after the release of the album's lead single. The single debuted in the top ten on the Oricon charts and was selected to be used as the seventh opening theme of the anime series Bleach.