In an internet-famous urban shared apartment, four young people with distinct personalities gather together. The salted-fish girl Xia Xingxing and the germaphobic and aloof Shen Yichen clash constantly upon their first meeting, followed by the move-in of Tang Tang and Jiang Hao, officially starting the four's co-living life. Experiencing numerous everyday comedic mishaps, they move from arguments and estrangement to mutual tolerance and support, becoming close family, and the male and female leads also gradually develop subtle romantic feelings from being enemies, making it a lighthearted and healing urban daily life story.