Origin
Old Belka
Signum has a taciturn and businesslike personality, contrasted by the more empathetic Shamal and the brash Vita. In A's, she carries out what she believes to be her duty (collecting pages of the Book of Darkness to save her master Hayate's life), even if it means dishonoring herself (by lying to Hayate and later, fighting and hurting a child, Fate). On the other hand, after the incident is resolved, she shows willingness to atone for her crimes and foresight not to have aggravated her and other Wolkenritter's case by unnecessary cruelty. Her speech is antiquated and and occasionally very formal, including keigo expressions. Although she appears cold and collected at all times, this facade gives way to a gentler personality when she is with Hayate and the rest of their "family". By the time of StrikerS, she has similarly warmed up to her ex-rival Fate, and the close partnership with Agito later that season seems to have generally loosened her up a little, as seen in Force.
Magical Girl Lyrical Nanoha
Third grader Takamachi Nanoha stumbled upon an injured talking ferret after hearing his telepathic cries for help. The ferret turned out to be Yuuno, an archeologist and mage from another world who had accidentally scattered the dangerous Jewel Seeds throughout Earth. Without the strength to collect the Jewel Seeds, Yuuno had resumed a ferret form and needed someone else to take on the task for him. He gave a red jewel to Nanoha explaining to her with this she could transform and use magic to combat the monsters that threatened them due to the Jewel Seeds. But the monsters are the least of their worries, as Yuuno and Nanoha are not the only ones out to collect the Jewel Seeds.
