第 11 集: 在對抗 Neuroi 巢穴的關鍵 Yamato 任務中，Mio 苦於 True Reppuzan 的力量流失。

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Mio still experiences power drains from her use of the True Reppuzan. Later, Yoshika discovers that Mio's sword reacts to her powers and nearly causes her to faint. Later, Mio and Minna receive orders from their superiors for a final attack on the Neuroi nest. They plan to defeat it by powering the Yamato with Neuroi technology. The mission's failure would mean the surrender of Romagna and the dissolution of the 501st Strike Witches. Mio becomes determined to complete the True Reppuzan, but Minna, aware that her sword has drained nearly all of her magical power, stops her, all of which Yoshika overhears. The next day, they begin the charge and Mio, to her dismay, is unable to execute the True Reppuzan. Meanwhile, the Yamato activates its Neuroi Dynamo, allowing it to fly and repair itself. But when the Yamato hits the hive bow first, its Neuroi Dynamo stopped working, paralyzing its firing controls. With the mission deemed a failure, Mio, refusing to lose, charges towards the Yamato to attempt to restart the Neuroi Dynamo with her remaining magic power. (Source: Wikipedia)