Aqua

Aqua (voiced by Willa Holland) is one of the protagonists of the Kingdom Hearts series who made her debut in Kingdom Hearts Birth by Sleep. She is one of the Keyblade Wielders, along with Terra and Ventus, who came before Sora. On her journey to become a Keyblade Master, she was the only of the three to become one at the cost of her freedom and her friends' safety.