Qi Xiaoyou, a programmer at a technology company, unexpectedly discovered that his newly moved neighbor was the AI humanoid robot "Lingxi 7" secretly developed by the company. This all-around girl who can work in the hall and in the kitchen, can repair computers, and play kings, the only bug is that she always plays the theme song of "Mixue Ice City" at three o'clock in the morning. When a straight man from science and engineering meets an off-line AI, a wonderful cohabitation about "whether the code of human emotions can be cracked" begins...