D-Frag!/Trivia

Hey, It's That Voice!: Some well-known voice actors lent their talents for the series' drama CDs, namely the following:
- Katsuyuki Konishi as Kenji Kazama
- Kana Hanazawa as Roka Shibasaki
- Chiwa Saito as Chitose Karasuyama
- Mikako Takahashi as Sakura Mizukami
- Ami Koshimizu as Minami Oosawa
- Shizuka Itou as Takao
- Jun Fukuyama as Ataru Kawahara
- Emiri Katou as Noe Kazama
- Aki Toyosaki as Funabori