Chihiro Ogino, a young girl, stumbles into a mysterious world of spirits and gods after her parents are transformed into pigs by a witch named Yubaba. To survive and rescue her parents, Chihiro must navigate the strange and often perilous realm of the spirit bathhouse, where Yubaba reigns as the tyrannical overseer. Forced to work under the name "Sen," Chihiro encounters a variety of supernatural beings, including the enigmatic Haku, a boy who aids her but is bound to Yubaba’s service.

As Chihiro adapts to her new environment, she forms alliances with other characters, such as Lin, a bathhouse worker, and Kamaji, the boiler room operator. She also faces challenges from antagonistic figures like No-Face, a spirit who wreaks havoc in the bathhouse. Through her journey, Chihiro learns the importance of courage, resilience, and selflessness. Her determination to save her parents and free Haku from Yubaba’s control drives the narrative forward, culminating in a series of trials that test her resolve and ingenuity. The story explores themes of identity, transformation, and the clash between the human and spirit worlds, all while maintaining a focus on Chihiro’s growth and her relationships with the inhabitants of this fantastical realm.