Lee Shang Ching had a secret-she lived in the interiors of a mountain. She did not want her classmates to know about this because she was afraid that they would look down on her. Even her best friend, Chang Mi Fen, had never been to her house.
Although there was no water supply, electricity and even a flush toilet at the place where she lived, it was overlooked as it had beautiful natural surroundings. Every day, with her brother, Shang You, she would bring a flock of goats out to graze.
One day, disregarding their father's warning, they drove the flock of goats to the North West Mountains. When they realized that they were lost, it was too late. Fortunately they met a kind man, Uncle Song. He drove them back to their house.
Shang Ching did not know that Uncle Song was the uncle of her class monitor, Song Yi Shiang. All too soon, her secret was out. Chong Mi Fen even wanted to stop befriending her because of that. Although Shang Ching was sad, she had to brace herself up to prepare for the up coming public speaking competition. When the day of the competition came nearer, Shang Ching was absent from school unexpectedly for four days. Meanwhile, Song Yi Shiang's uncle also went missing for four days. What had happened to both of them? Would Shang Ching turn up for the competition? Would the misunderstanding between her best friend and her be cleared?
Through this story, the reader will experience the pain and joy of all the main characters concerned.