It tells the story of the happy enemies Hua Qianjin and her balcony tenant, Xin Fan, laughing and playing, and working together. Their feelings gradually escalate in their chaotic daily life, and their good friends Su Du and Mi Yue gradually show signs of ambiguity. The love between the "dominant boss" and the sweet girl surfaces... At the same time, the four little ones are also facing more and more bad things. They continue to perform a story about love and growth in the mess of life.