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.

• Seven Arcs
• Yukari Tamura
• Nana Mizuki
• Kana Ueda
• Haruka Tomatsu
• Satomi Sato
• Yoko Hikasa
• Natsuko Kuwatani
• Kaori Shimizu