Fifth single from Sexy Zone includes a solo track by Kento Nakajima and more for three tracks total. Includes an another cover featuring Kento Nakajima randomly selected from three kinds. Its back cover also features Kento Nakajima. This edition comes with a bonus DVD featuring a music clip of the title song "Bye Bye Du Bye - See you again -." A part of included tracks corresponding to all the four editions is different from each other. *The DVD disc is encoded for region 2 (Japan, Europe, and Middle East), and no subtitles are included.