The planet Eltria, having suffered severe desertification in the past, has all but been abandoned. Against her older sister's wishes, Kyrie Florian travels to Earth alongside her best friend, the AI Iris, in search of the key to their planet's regeneration. However, the only way to find it lies within the Tome of the Night Sky, leading them into conflict with Nanoha and her friends.
田村ゆかり
as Nanoha Takamachi / Stern (voice)
水樹奈々
as Fate Testarossa / Levi (voice)
植田佳奈
as Hayate Yagami / Dearche (voice)
戸松遥
as Amitie Florian (voice)
佐藤聡美
as Kyrie Florian (voice)
日笠陽子
as Iris (voice)
桑谷夏子
as Arf (voice)
清水香里
as Signum (voice)
真田アサミ
as Vita (voice)
水橋かおり
as Yuuno Scrya (voice)
久川綾
as Lindy Harlaown (voice)
柚木涼香
as Shamal (voice)
