Sekirei Pure Engagement Special (2010)
Original title: セキレイ～Pure Engagement～第零羽
Sekirei Pure Engagement Special is a 2010 Japanese-language movie, with a running time of 28m. It stars Marina Inoue, Saori Hayami and Yukana.
Episode 0 "Kanwanidai (two subepisodes: Sekirei Shindan & Sekirei Yoka)" of Sekirei ~Pure Engagement~ released on the first DVD and BD volume.