Aile The Shota brings the fourth EP. Includes "No Frontier," which is the intro theme song for the TV anime "AI no Idenshi" OP theme, "Pandora," and more. Digipack packaging. The limited edition includes a Blu-ray with the last-day performance from <Aile The Shota 1st Oneman Tour "Prologue">held at Osaka GORILLA HALL OSAKA on July 29. In addition, it contains <Making of "Prologue">.