Round Moon in the Sky

In the dark room, there is a mysterious figure. His blurred eyes are staring out the window. What does he want to break through? Rather, he wanted to solve the mystery. One after another, characters tried to lift the curse of bad luck, but in the end they all failed, leaving only Guan Lingguang. The time and space he was in was a time and space where humans, fairies, demons, and gods coexisted. As a high school student, Guan Lingguang held a knife and was ready to end everything, but he found that if he could kill Xiao Shishi, the girl who was the reincarnation of the devil, he would fall into his own paradox. He didn't want to kill an innocent person. It was obvious that Xiao Shishi was still a student at this moment, he didn't understand anything, and he couldn't destroy anything like the devil. However, if Guan Lingguang doesn't deal with this matter, it will be too late if Xiao Shishi turns into the devil! So, what should Guan Lingguang do?