桂木千鍵
A character introduced in [[Mahou Tsukai no Hako]], and is playable in [[Fate/Grand Order]] alongside [[Hibino Hibiki]] as the Alter Ego Servant [[Azumi-no-Isora (Fate)|]]. In their Third Ascension, they become [[Sirius (Fate)|]], due to Hibiki's identity as the Holy Scripture Triten.

h4. See Also
* [[Hibino Hibiki]]
* [[Smartphone-san (Fate)|]]
* [[Hibino Hibiki (Second Ascension)]]
* [[Katsuragi Chikagi (Second Ascension)]]
* [[Azumi-no-Isora (Fate)|]]
* [[Sirius (Fate)|]]
* [[Keitai-san]]
katsuragi chikagi