Japan debut single from AFTERSCHOOL. Limited Edition A includes "Bang! (Japanese Version)" and "Let's Do It! (Japanese version)." It also comes with a DVD including music videos for "Let's Do It! (Japanese version)" and "Bang! (Japanese Version)" as well as a special message video in which members introduce themselves in Japanese. A trading card is included (one design randomly selected from 10 kinds). Comes in a special slipcase.