The city of the near future is peaceful and prosperous on the surface, but in reality there is an undercurrent. A mysterious transnational organization called the "Black Crow Society" has infiltrated the political, business and military circles. On the surface, it engages in charity and scientific research, but secretly conducts illegal activities such as human experimentation, memory manipulation, and biological modification. The organization has a history of hundreds of years, its forces are intertwined, and it even has ulterior connections with high-level officials in some countries.
The protagonist Lin Mo was the "Black Crow", a core member of the Black Crow Society in his previous life. He mastered the organization's core secrets and technologies, but was silenced after discovering that the organization's top leaders were conducting human experiments and ulterior plans. At the moment of death, his consciousness traveled back to the three days before his death, obtained the mysterious system, and was reborn as an ordinary high school student.
