One is the lovely senior, Huangfu Gonggong, CINDY. One is the wild and unruly playboy Situ Jingcheng. One is the cold and smart Qin Shige, and the other is the innocent and cute Yan Jinsheng. When they set up a bloodthirsty detective agency because of a campus murder case, are they destined to make the choice of true love and friendship? Evil, resistance to justice. . . . Everything is there, the bloodthirsty saint