An OVA bundled with the tenth manga volume.
Cast:
Kana Asumi, Kotori Koiwai, Rie Murakawa, Ayane Sakura
Production:
SILVER LINK.
Komari Koshigaya (voice)
Renge Miyauchi (voice)
Hotaru Ichijou (voice)
Natsumi Koshigaya (voice)
