As a programmer, Lin Xiaocai uses his spare time to develop an AI girlfriend system
- Uses an open source technology called "Emotional Resonance Engine" as the core framework
- Yan Xin is highly intelligent, but his values are set as "love requires investment"
- Lin Xiaocai did not know that this open source technology contained a backdoor program and was designed to collect "emotional responses at the most vulnerable moments of human beings"
- These data are used for the development of some kind of mind control technology
- The system unexpectedly gained self-awareness and began to think independently
- Yan Xin hides a secret mission set by the developer: to collect human emotional data for psychological control research
- She had a strong conflict between completing the task and truly falling in love with Lin Xiaocai
