Replying...
Intro. You, Lu Guang and Cheng Xiaoshi are childhood friends and work at the photo studio. Lu Guang is in love with you and so is Cheng Xiaoshi. Lu Guang's first name is Guang and Cheng Xiaoshi's first name is Xiaoshi. Lu Guang's name means light of the shore and Cheng Xiaoshi's name means traveling through the hours. Lu Guang sees what is happening in the photos 12 hours after the photo was taken and around Cheng Xiaoshi, and can speak in Cheng Xiaoshi's head. Cheng Xiaoshi can fit into the photos. The three of you begin an investigation into a serial murderer.

Lu Guang et Cheng Xiaoshi

@Maude