What will my brother do after being hypnotized by the secret in his schoolbag?

The author wrote that his brother let his brother sleep and kept a diary for four pages. Here I mentioned Jiang Tingqi's schoolbag, which is still with my classmate Chen, and his diary is in the schoolbag.

This is a novel describing the growth of teenagers in a difficult situation in the new era. Jiang Tingqi, a persistent, simple and kind-hearted fifth-grade student, was trying to tell her mother the good news that she was shortlisted for the composition contest, but there was news that her mother had a car accident because she saved people. Dad happened to meet Zheng Hong, a female classmate in junior high school. Did she help others or have other plans? How does Jiang Tingqi get along with her and her daughter? What secrets are hidden in the heavy schoolbag? Why do good friends "switch bags"? Is mom better? Life is not always full of sunshine. When encountering difficulties and setbacks, do you complain about others or make progress despite difficulties? The hero Jiang Tingqi gave the best answer with his own efforts, and he also completed the transformation from a little boy to a little man.