Chihiro's growth into a capable individual is a core factor to the movement of Spirited Away's plot. During her adventure in the Spirit World, she matures from an easily-scared girl with a child-like personality to match her age to a hard-working, responsible, and brave, young girl who has learned to put her fears aside for those she cares for. To protect her friends and rescue her parents from a spell that has turned them into livestock, Chihiro sheds her former personality and adapts to her environment to become a courageous, quick-witted and reliable girl.
The strength of her bond with Haku as the story progressed eventually evolved into a very sincere form of love that dispelled Yubaba and Zeniba's curses on Haku. [Source: wikia]
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