Nen ni wa Nen / Survivor (念には念 / サバイバー; Look Before You Leap / Survivor) is the debut indies DVD single by Kobushi Factory. The song "Survivor" is the theme song to the musical Week End Survivor. It was released on March 26, 2015 being sold at the musical venue.
As of April 19, 2015, it was also being sold at Morning Musume's concert tour, where Kobushi Factory appeared as an opening act. As of April 21, it is also available on e-LineUP!.