Lily of da Valley is the fourth full-length album by Japanese rap rock group Dragon Ash; released in 2001. The album was preceded by the release of three singles, including "Shizuka na Hibi no Kaidan o", which was used as the ending theme for the 2000 film Battle Royale. The limited edition features "Episode 2" featuring Shun and Shigeo as a bonus track. The album also contains the hidden track "Hanakotoba". In the language of flowers, lily of the valley represents the return of happiness.