On the day after the college entrance examination, her mother suddenly set three strict family rules for the family, kicked 18-year-old Zhao Yu out of the house, and severed the relationship between mother and daughter. Zhao Yu went south to work alone and went to college on his own, but unexpectedly found his mother's house book, savings and final letter hidden in her suitcase. It turns out that her mother is not cruel, but endures the pain and torture alone to protect her from the calculations and dangers of her original family. In the end, Zhao Yu knew the whole truth, properly arranged for his mother, said goodbye to the bad past, and started a new life of his own. The ending is sweet and has no bad direction.
