Morgiana is a Fanalis. She was first a slave with Goltas of Jamil, when she met Aladdin and Alibaba Saluja. She is one of the main characters of the series Magi: The Labyrinth of Magic.

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Morgiana has red hair and eyes, like all of the Fanalis. She wears a short white dress. She now wears her leg chains which are now a Household Vessel on her arms, and a backup vessel which is a necklace around her neck and goes barefoot. She has a sturdy yet petite build and is very strong.
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Morgiana is a quiet girl who barely talks. She likes strange things, for instance, instead of choosing jewelry for her Household Vessel, she considered two devilish looking manifers (though possibly only because Alibaba recommended them). When mad, she usually puffs up her cheeks or stomps her feet on the ground (which breaks it).

Even though she is strong and tough, she does have moments when she acts opposite to this such as when she smiled when Alibaba complimented her, and shown jealousy when Alibaba complimented another girl. She is hinted to have feelings for Alibaba, proven when Hakuryuu realized that why she wouldn't go with him to the Kou Empire was mostly because of her feelings for Alibaba and her attachment to Aladdin.

She is secretly very insecure about herself because she always deems herself to be useless compared to the others. Her biggest wish is to be useful to Aladdin and Alibaba. She was happy but disturbed by Hakuryuu's feelings for her, but says that becoming Empress was impossible since she used to be a slave, showing that she still has a complex over it.
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Most of Morgiana's past is still a mystery, except that she is originally from the Dark Continent. At a young age, Morgiana was taken from her mother and father, and was sold at a market as a slave. One of the things that happened to her while she was there was being stripped and shown off naked. During that time, she used to cry out for her mother and father to to save her.

At some point, Morgiana was sold to Jamil, who abused her to the point of her being terrified of him, something that still haunts her. Like Aladdin pointed out, Morgiana had invisible chains on her, set by Jamil. She had something similar to Stockholm syndrome, where the captive starts to sympathize with the captor.