Qin Wan'er, a journalist who was born and raised in Chengcheng City, China, is a Chinese-American mixed-race child. She was a child who grew up in an orphanage and had an inhumane tragedy but a lucky life experience. On this day, she received a task to conduct a secret investigation on BG, a multinational financial company. As a journalist who exposes the truth, and because Qin Waner had just broken up with her boyfriend who had been together since college, she was in a very bad mood and needed to numb herself with busy work. Various reasons were intertwined. Qin Waner, who was originally unable to handle the case, was obliged to take over this important task.