The Wolkenritter's familiar-like companion, a large blue wolf. He is not treated like a familiar but as a companion by the other knights and only responds to Hayate as his mistress. Despite this, he says that he, like a familiar, will help his master regardless of whether it is right or wrong. Zafira is called the Shielding Guardian Beast, though [[Arf]] ([[Fate Testarossa]]'s familiar) claims that this is the same thing as a familiar. He transforms into a muscular dark-skinned man, wearing blue warrior-like clothes created by Hayate, and in battles, always finds himself facing Arf.

He then returns to his dog form as of [[Mahou Shoujo Lyrical Nanoha StrikerS|StrikerS]].

His seiyuu is [[Ichijou Kazuya]].
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