is the eighth single by Do As Infinity, released in 2001. "TÃ Âku Made" was the theme song to the anime movie ' and was also used during the final episode of the first series of the Japanese TV drama "Waterboys". "Signal" was the theme song to a Lavenus hair care TV commercial which starred the lead vocalist, Tomiko Van.
This song was included in the band's compilation albums Do the Best and Do the A-side.