Kanpeki Will (カンペキWill（うぃる）?) is Uiharu Kazari and Saten Ruiko's duet image song for the Toaru Kagaku no Railgun anime sung by their Japanese voice actors Toyosaki Aki and Ito Kanae.
It appears as the second track on the Toaru Kagaku no Railgun Archives 3, and was released on July 30, 2010.[1]