 All three titles, as well as the entire spin-off franchise starring Nanoha, were written by .In the plot premise of the original series, "Magical Girl Lyrical Nanoha" (2004), 21 "Jewel Seeds", highly destructive artifacts from another dimension, are accidentally scattered across Earth.After Nanoha assists an injured extradimensional magician in collecting them, she is drawn into a magical battle against a female mage named Fate Testarossa, who came to Earth to collect Jewel Seeds for her mother Precia.