Ep. 4: Cecily rechaza a Aria como maestra, y la subasta de la espada demoníaca se convierte en una emboscada ardiente por parte de Jack

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In the morning, Cecily is using her new practice sword to train while Aria watches her. Aria expresses interest in Cecily becoming her next master, but Cecily rejects this, opting to become her friend instead. Hannibal reveals that the Demon Sword auction might be a ploy to bait Siegfried, known to Cecily as "the man in the black". Cecily performs the auction with Aria, until the participants' applause is cut off when Jack appears in the middle and sets the place on fire. Luke, Cecily and Aria manage to defeat Jack and attempt to save the people. Thereafter, Aria pledges to become Cecily's partner as a sword meant to protect the people. (Source: Wikipedia)