Aerith make an appearance in the Kingdom Hearts series as a member of a group dedicated to defeating the Heartless ; the group also include other Final Fantasy VII characters and Leon of Final Fantasy VIII . In the plot of Kingdom Hearts , Aerith suggest a method for defeating the Heartless to protagonists Donald Duck , Goofy and Sora . Throughout the game , she also give advice to the player . She also appear in Kingdom Hearts : Chain of Memories as a perceptive figment of Sora 's memories . Aerith returns in Kingdom Hearts II , wearing a modified version of her dress from Before Crisis . She , Leon and Yuffie run a restoration committee for the town of Hollow Bastion .