In order to dispel the "grievance" of their roommate Jiang Xin, Zhang Ruiqi, Feng Yanlong, and He Yiwei burned Jiang Xin's relics and buried them in the small barren mountain behind the school according to the method of the psychic Qiu Juan. However, because they miscalculated the weight of cinnamon bark corresponding to Jiang Xin's birthday, they had to rework at midnight to remove the bones. When retrieving the bones, they found Feng Yanlong's head in the urn. Zhang Ruiqi was frightened and ran away, eventually falling to his death. He Yiwei thought he had survived, but when he chatted with "Qiu Juan", he learned the truth: "Qiu Juan" was actually Xu Hao, who was pushed into the cement pool to death many years ago. She used the "bone burial" to change her body, and the curse of "can only live one" ultimately pointed to herself, and He Yiwei was dragged underground and disappeared.