On the top floor of a mid-range residential complex in Beijing, the children of four families are preparing for the college entrance examination. Because of the idea that "one test determines life," the four families have fallen into a state of extremely anxious preparations, and the problems caused by this have also followed one after another. The Xu family's parents had just returned from the UK and were influenced by foreign ideas. They respected their daughter's ideas and the family was happy. Although their well-behaved and sensible daughter Xu Siqing had always been a top student, she had just returned to China and needed to slowly adapt to the pressure of the college entrance examination in China. There are many conflicts between the mother Tong Wenjie, who "hates iron but not steel", and her son Fang Yifan, who "has no pressure" and loves freedom, and her father Fangyuan has to turn into an "arbiter" to mediate; Song Qian, a single mother who refuses her ex-husband Qiao Weidong's "intrusion" into their mother and daughter's life, has a negative attitude towards the birth of her daughter Qiao Yingzi. Life unfolded with "all-encircled" concern, and misunderstandings and conflicts quietly broke out unknowingly; the sudden concern of "airborne father" Ji Shengli and his mother Liu Jing left Ji Yangyang, who had been raised by his uncle Liu Zheng since childhood, at a loss. The cautious relationship between father and son did not bring "peace" to this relationship. Parents who are "first-time parents" and their children who have just reached adulthood are connected by love, and misunderstandings arise because it is difficult to grasp the boundaries of love. However, it is these "endless trials" that allow every family to learn to grow in love and understanding.