He Yicheng is a top business security consultant in the industry. He is calm, restrained and never misses a beat. The mission this time is to go undercover into the cutting-edge technology company "Mind Technology" and investigate its founder Shen Zhiwei. This company claims to be developing emotional AI, but in fact it is secretly conducting illegal "humanity experiments" in an attempt to manipulate and reshape human emotions through algorithms. He Yicheng is a newly hired security tester. He is taciturn and has outstanding skills. He quickly attracted the attention of the workaholic CEO Shen Zhiwei.