D4DJ Special Disc

 is a single series consisting of 3 songs with three versions depending on artists from its title song. These singles will be released on February 24th, 2021 only with the purchase of D4DJ First Mix opening single and ending single.

The version of the disc received depends on the store the singles were purchased from:
 * Happy Around ver.: Animate, Amazon Japan, CD PLAZA WAVE MEGAMAC/WOW Store, BOOKSmisumi, M's EXPO
 * Peaky P-Key ver.: Gamers, Comic Toranoana, HMV/HMV&BOOKS online, TSUTAYA RECORDS, Yodobashi Camera, Books Nakada To-on Music, Heiando Store, BanG Dream! & D4DJ Store, Bushiroad EC, Futabatosho,
 * Photon Maiden ver.: Tower Records, Shinseido/Wondergoo, Neowing/CDJapan, Rakuten Books, Sofmap Animanga, Coach and Four, Amiami, Super Books, Miyawaki Hisai Store, Aoi Nishio Store

Happy Around! ver.

 * 1) Happy Around Days (Artist: Happy Around!)
 * 2) Give Me Awesome!!!! (Artist: Happy Around!)
 * 3) Make My Style (Artist: Happy Around!)

Peaky P-key ver.

 * 1) ABSOLUTE (Artist: Peaky P-key)
 * 2) HONEST -happy a word- (Artist: Happy Around!)
 * 3) Make My Style (Artist: Happy Around!)

Photon Maiden ver.

 * 1) Akatsuki (Artist: Photon Maiden)
 * 2) Brand New World (Artist: Happy Around!)
 * 3) Make My Style (Artist: Happy Around!)