Zeniba

"Haku, I will forgive you for stealing my precious seal. But in return, you must take care of this girl.
 * —Zeniba to Haku, regarding Chihiro."

Zeniba is a character in Spirited Away, and the identical twin sister of Yubaba. Despite the fact that she and her sister are entirely identical in appearance, they are polar opposites in personalities. As Yubaba is mean and selfish, Zeniba is kind and generous.