M-01
Performer: Yoshitaka Yamaya, Tasuku Hatanaka
Composer: emon, Powerless
Arranger: Powerless
Lyricist: Karasuya-sabou
M-02
Performer: Natsugumi (Daisuke Hirose, Takuya Eguchi, Shunichi Toki, Yoshitaka Yamaya, Ren Ozawa)
Composer: Masayoshi Oishi
Arranger: Masayoshi Oishi, Yuki Nara
Lyricist: Masayoshi Oishi
M-03
Script: tom
Cast: Takuya Eguchi, Shunichi Toki, Yoshitaka Yamaya, Daisuke Hirose, Ren Ozawa, Tasuku Hatanaka
Album was composed by emon / Masayoshi Oishi / Powerless and was released on June 26, 2019. Soundtrack consists of 5 tracks tracks with duration over about 30 minutes. Album was released by Pony Canyon.
CD 1
| 1 | The Prince in Full Bloom～花の王子と従者様～ | 05:10 | |
| 2 | Ever☆Blooming! ～夏組Ver.～ | 03:54 | |
| 3 | 『A3!』ボイスドラマ 「MANKAIチャンネル ～夏組編～」 | 09:38 | |
| 4 | The Prince in Full Bloom～花の王子と従者様～ (INSTRUMENTAL) | 05:09 | |
| 5 | Ever☆Blooming! ～夏組Ver.～ (INSTRUMENTAL) | 03:50 | |
