Seilah (セイラ Seira) is an Etherious of the Dark Guild Tartaros and its team: the Nine Demon Gates. Seilah is a calm and collected person who uses story chapter motifs in her speech. She has also displayed a cold and ruthless side to her as shown when she told Elfman that "mercy doesn't exist in the story of Demons" while forcing him to strangle Lisanna with her Curse. She is incredibly loyal, if not infatuated with Kyôka, blushing when she was praised for initially believing that she destroyed the mages of Fairy Tail, and referring to her with the honorific -sama. She also has a sense of pride as well as arrogance, shown when she planned to get revenge on Mirajane for ruining her reputation and shaming her in front of Kyôka.