The image of Joe in the play is a representative who grew up under the control and education of his mother. As a schoolmaster, she is under great pressure and unhappy, because her mother expects too much of her and thinks that her wish must be Tsinghua Peking University. Her mother, Song Qian, forced her to drink nourishing soup in order to be admitted to a prestigious school, and installed sound insulation and transparent glass in her room for all-round supervision and control. Children always try to escape from this environment and even say, "I feel like I'm sitting in a prison." Song Qian is a typical China parent. They regard love as a tool to bind each other. She loves her daughter deeply, but lacks equality and understanding. We can guide children, but don't try to control them. Parents' love should not be an unbearable burden in children's lives.