What does LEAFA stand for? 

Leafa

Suguha Kirigaya (桐ヶ谷 直葉, Kirigaya Suguha) is a fictional character who appears in the Sword Art Online series of light novels by Reki Kawahara. She is more commonly known as Leafa (リーファ, Rīfa), her player name in the fictional ALFheim Online virtual reality MMORPG in which the novels are partially set. In the real world, Suguha is the cousin and adoptive sister of series protagonist Kazuto Kirigaya (also known as "Kirito"); after he becomes trapped in the eponymous Sword Art Online video game in the series' first story arc, she starts playing a similar VR game, ALFheim Online, to better understand the world in which her brother is imprisoned. After her mother reveals to her that Kazuto Kirigaya is not her biological brother, Suguha starts to develop romantic feelings towards him but is later saddened after realizing his attachment to Asuna Yuuki. In the anime adaptation, Leafa is voiced in Japanese by Ayana Taketatsu and in English by Cassandra Lee Morris. The character has received mostly positive critical reception, with praise centered on her character development and portrayal.

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