Four friends with different family problems and different personalities gathered in a residential building. They come from three different families. Lin Jingze on the first floor was abandoned by Phoenix Man's father, and he was determined to take revenge by becoming a Go player. At this time, my mother brought back a stepfather. Yi Wanqing on the second floor is the extra person in the family. She wants to be a philanthropist and find another way to achieve her goals. Wang Mingzhe and Liu Xiaoxiao on the third floor, their parents were divorced... The four of them walked together and walked firmly towards their original dreams step by step... Not only did they complete their dreams, but they also redeemed their "childhood" that was stuck in the mud.