Radio Programs

On September 23, 2020, it was announced that the 6 main groups will have their own radio show. Each show was hosted on a different radio station.

Guru Guru RADIO TIME!!
"Happy Around! no Guru Guru RADIO TIME!!" (Happy Around!のぐるぐるRADIO TIME!!, Happy Around!'s Swirling RADIO TIME!!) is Happy Around!'s radio show that broadcasts on TOKYO FM. The first episode aired on October 3, 2020 and was hosted by Nishio Yuka and Kagami Karin, afterwards having the hosts rotate among the unit's four members. The final episode aired on March 31, 2021, and was hosted by all Happy Around members. The radio later switched to "Guru Guru RADIO TIME!! ｰYoba Academy's Broadcasting Roomｰ" on April 7, 2021.

Saichouten Mix
"Peaky P-key no Saichouten Mix" (Peaky P-keyの最頂点Mix, Peaky P-key's Top Mix) is Peaky P-key 's radio show that broadcasts on TBS Radio. The first episode aired on October 1, 2020, and was hosted by Takagi Miyu with Kurachi Reo joining her for the month of October, afterwards having the hosts rotate among the unit's four members. The final episode aired on March 25, 2021, and later combined with "Guru Guru RADIO TIME!! ｰYoba Academy's Broadcasting Roomｰ" on April 7, 2021.

Universe
"Photon Maiden no Universe" (Photon Maidenの Universe, Photon Maiden's Universe'') is Photon Maiden's radio show that broadcasts on bayfm. The first episode aired on October 3, 2020 and was hosted by Tsumugi Risa and Maeshima Ami. The final episode aired on December 26, 2020 and later combined with "Guru Guru RADIO TIME!! ｰYoba Academy's Broadcasting Roomｰ" on April 7, 2021.

RADIO BIG W4VE!!!!
"Merm4id no RADIO BIG W4VE!!!!" (Merm4idのRADIO BIG W4VE!!!!, Merm4id's RADIO BIG W4VE!!!!) is Merm4id's radio show that broadcasts on NACK5. The first episode aired on October 3, 2020 and was hosted by Hirajima Natsumi. It later moved on to HiBiKi Radio as "D4DJ presents Merm4id's RADIO BIG W4VE!!!!PLUS!", having its last episode aired on NACK5 during December 26, 2020. It has since combined with "D4DJ Floral Tonight".

Koyoi, Umi wo Mitsumete
"Rondo no "Koyoi, Umi wo Mitsumete"" (燐舞曲の「今宵、海を見つめて」, Rondo's "Tonight, We Gaze Upon the Sea") is RONDO's radio show that broadcasts on Fm yokohama. The first episode aired on October 3, 2020 and was hosted by Kato Rihona and Otsuka Sae. The final episode aired on March 31, 2021, and was hosted by Kato Rihona and Tsunko. It has since combined with "D4DJ Floral Tonight".

Li Li Li no Li♪
"Lyrical Lily no Li Li Li no Li♪" (Lyrical Lilyのリリリのリ♪, Lyrical Lily's Li Li Li no Li♪) is Lyrical Lily's radio show that broadcasts on Nippon Broadcasting Corporation. The first episode aired on October 5, 2020 and was hosted by Tanda Hazuki and Watase Yuzuki, along with Nippon Broadcasting announcer and fellow D4DJ seiyuu Yoshida Hisanori. The final episode aired on December 28, 2020, and was hosted by Tanda Hazuki and Fukagawa Ruka, Shindo Amane and Yoshida Hisanori. It has since combined with "D4DJ Floral Tonight".

Yoba Academy's Broadcasting Room
"D4DJ Guru Guru RADIO TIME!! ｰYoba Academy's Broadcasting Roomｰ" (D4DJ ぐるぐる RADIO TIMEｰ陽葉学園放送室ｰ) is a radio show that broadcasts on TOKYO FM. It has replaced Happy Around!'s original radio show and features the members of the Yoba Academy students, Happy Around!, Peaky P-key and Photon Maiden. The radio is mainly hosted by Kagami Karin and co-hosts Aimi for the month of April, Tsumugi Risa for the month of May and Nishio Yuka for the month of June.

Floral Tonight
"D4DJ Floral Tonight" (D4DJフローラルトゥナイト) is a radio show that broadcasts every Monday on Fm yokohama. It features the members of Merm4id, RONDO and Lyrical Lily, where every two weeks, two people at random will talk about the behind the scenes of D4DJ and their favorite music. The first episode aired on April 5, 2021, and was hosted by Okada Mei and Kato Rihona.