When Shen Qingya's quantum detector lit up the red light in the haunted house, Su Qingyue was "delivering" the soul of the stranded student with a red rope and copper coins. Those that cannot be explained by science will be returned to the underworld; those that the underworld cannot control will be sent to the road by her. It wasn't until the ancient mark became hot in his palm that she was shocked to realize that this man who used codes to analyze the wavelengths of ghosts was actually the reincarnation of an alchemist who had been martyred a hundred years ago. And their common enemy is using algorithms to tamper with the Book of Life and Death, preparing to rebuild hell on the server cloud.
