In the process of moving with her parents, Ogino Chihiro, a 1-year-old girl, mistakenly broke into the forbidden area of human beings-the hidden world. The street food attracted Chihiro's parents, so she had to come to the bridge alone. Suddenly, a strange boy scolded her for walking to the other side of the river. At this time, she discovered that her parents had become pigs because of greed, and she was gradually becoming transparent. Just when Chihiro was helpless, the boy helped her, told her how to save her parents, and told Chihiro his name-Bailong. In this way, Chihiro began to work in the soup house, and his name was changed to Qian. During this period, Grandpa Boiler and Xiaoling have been helping her. Bailong (Mr. Bai) also took her to see her parents to comfort her; And met Kaonashi during this period. One day, Chihiro found the injured Bailong, and when she learned that there was only a chance to save Bailong in Qian Popo, she set foot on the road to save Bailong without hesitation. Qian Popo, Kaonashi, and the baby woven a headrope (amulet) for Chihiro. Just then, the white dragon turned into a dragon body to meet Chihiro. On the way back, Chihiro helped the white dragon find its real name-Nigihayami Kohakunushi. Before leaving the hidden world, Bailong and Chihiro made a promise that they would meet again in the future. Finally, Chihiro and his parents returned to the human world. This "moaning trip" made Chihiro understand love and changed her completely.

it really can't be simpler.