Daughter of Godo, Lord of Wutai, Yuffie Kisaragi was a spunky, headstrong ninja adamant about recovering her hometown's lost glory in the war with ShinRa. She embarked on a trip to collect (or steal) materia, which led her to meet with AVALANCHE and eventually join them (for their materia). After the battle with Sephiroth, Yuffie surprisingly entrusted the group's materia to Cloud, who left them idly on the floor of Aerith's church.
Yuffie has called Cloud before to inform him of the missing children from Wutai, but made her return by parachuting into Edge to assist the group in their fight against Bahamut Sin. Her landing showed that Yuffie had yet to get over her motion sickness, something that plagued her during her travels on the Highwind.