Ao no Tsuzuki (蒼のつづき), translated as "Ongoing Blue", is one of the songs performed by Japanese vocalist, Mariko Ide. It appears on her ninth single of the same name, her last single under the avex tune label. The song is a tie-in collaboration with Kessen II and acts as the game's image song. An abridged version of it plays during the credits movie earned after completing Wei's story.