Episode 0 "Kanwanidai (two subepisodes: Sekirei Shindan & Sekirei Yoka)" of Sekirei ~Pure Engagement~ released on the first DVD and BD volume.
| Actor | Role |
|---|---|
 Marina InoueTsukiumi (voice) | Tsukiumi (voice) |
 Saori HayamiMsubi (voice) | Msubi (voice) |
 YukanaKazehana (voice) | Kazehana (voice) |
 Kana HanazawaKusano (voice) | Kusano (voice) |
 Aya Endo(voice) | (voice) |
 Sayaka Ohara(voice) | (voice) |
 Yuki Kaida(voice) | (voice) |
 Hitomi Nabatame(voice) | (voice) |
 Shizuka Itoh(voice) | (voice) |
 Shinnosuke Tachibana(voice) | (voice) |