Akiha Shishido is one of the main protagonists of the Sora Kake Girl series.

Akiha is typically a careless and dense girl who has no special talent outside of piloting QT-ARMS in combat, but she is kind, easygoing and courageous. Akiha's role as the protagonist begins in earnest when she and Imoko are swept into the gravity quake of Leopard breaching out of hyperspace while in flight from her eldest sister Kazane's marriage arrangement. Considering that she is the third of five siblings, Akiha's lack of ambition throughout much of the series is not an unreasonable outcome. In addition to piloting the war-era Starsylph QT-ARMS in combat, Akiha uses a golden gun, the Arma Ignis Aureus to assist Leopard in discharging the "Soul Shout" energy attack from the Leopard Cannon. It is shortly after Leopard's battle with Benkei that it becomes apparent that Akiha is vulnerable to Nervalist mental manipulation. While encased in a Full Cowl box aboard Xanthippe, Akiha comes to understand the attraction of Nerval's subjugation without being caught up in it thanks to Imoko's encouragement. Akiha inherited the "will" from Kagura. In Nami's attempt to kill Akiha, the EXISTENCE protected her. She was asked to destroy Leopard by Kazane.

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