I can rewind time to prevent death

When Yan Junze arrived at the division of the small unit, Huang Chen was already waiting for him at the main entrance on the first floor, so they skipped the registration process and went straight to the third floor. In an office there, Yan Junze took out a copper badge and scanned it on a device in the office to complete his registration and record. Next time he came, he could use the equipment in the office building of the Shuntian Exorcist squad, including applying for "Magnetic Shielding Clothes" from higher-ups. Arriving at Huang Chen's office, also on the third floor, this office was larger, and seven exorcists usually worked there, but at this moment, the others were all out. Huang Chen's desk was at the very back. He walked over and sat down with Yan Junze, poured him a cup of water, and then took an archive bag out of a drawer. "This is the photograph involving the complainants from the Photographing Heads Turning case," he said. Yan Junze took it, opened the archive bag, and asked, "Are all these people's photographs paper prints? No digital ones?" "Yes," nodded Huang Chen, "I have people tracking the situation. So far, it seems that only photographs in the possesion of the subjects themselves can turn heads. So as soon as a head turns, they send us the latest photograph." "What method are you currently using to tackle this strangeness?" inquired Yan Junze. Huang Chen shrugged, "There's no solution for now. We can only take all necessary precautions to prevent the worst from happening. As soon as someone's head in the photograph almost completely turns, our three-star exorcists will start providing close protection. But..." "But what?" Yan Junze pressed. "Recently, in two photographs, the targets' heads had fully turned. Thus, our three-star exorcists began 24-hour protection. Yet one person died struggling in his sleep, unresponsive to any calls. The other person, in front of a three-star exorcist, twisted his own head around to his back with his own hands, dying from a broken neck." "Could that person have been Spirit-Split?" Yan Junze speculated. "No," Huang Chen shook his head, "At that time, our three-star exorcists had already deployed High-Energy Collapse. If he had been Spirit-Split, this would have been enough to blast the strangeness out of his body. Even if that strangeness was powerful, it would have been halted from further harming the Spirit-Split person. But when we deployed the High-Energy Collapse, there was no reaction." Yan Junze stroked his chin, silent, and began to examine the photos extracted from the archive bag. The first photo was similar to Xia Ruolan's, also a group photo. However, the head of a man on the far right had turned backward, making him stand out starkly from the others. Huang Chen said, "This photo you're looking at is from the first person to report the case; the person is already dead." Yan Junze flipped the photo over, read about the man's details and cause of death on the back; he had died in his sleep. And now, this photo was the last one taken before the man's death with his head turned. Yan Junze turned the photo back around and looked closely, realizing that the man's head had almost completed a 180-degree turn. This was the result Huang Chen referred to as "completely turned." By that standard, Xia Ruolan's photo would soon be in the same state. Turning to the second person's information, the first item was also a photograph, but this one was of a single person. In the photo was a middle-aged woman, posing in front of a beautifully landscaped man-made scenery. Many other people appeared to be waiting in queue alongside the scenery, probably in line for photographing. However, in the photo at this moment, the middle-aged woman's head had also completely turned, showing only the back of her head to the camera. "Did this woman... also die?" Yan Junze asked while scanning the details on the back of the photo. Quickly, he found death certification materials similar to those of the previous man. "This woman's death was more gruesome; in front of her husband, she twisted her own head off," said Huang Chen. After a pause, Huang Chen added, "You should mainly take a look at the subjects of the subsequent photos; these people are still alive." Yan Junze browsed through the following photos, which include both individual and group photos, the worst being one in which the head was almost fully turned. It was a photo of a young man whose name, Yan Junze noted, was Yang Zhijun. "Currently, three-star exorcists have been with Yang Zhijun continuously; he's the most dangerous one at this stage," Huang Chen said, pointing his forefinger at the man's photo. Yan Junze spread out seven or eight files randomly on the desk and frowned, "I've noticed similarities among these photographs." Huang Chen nodded, "You've spotted it." Then, he moved his finger to the background of one of the photographs, which included some passersby. "There's a woman with long hair," he said gravely. Moving his finger to the middle-aged woman's photograph in front of the man-made scenery, he pointed at the waiting crowd in the queue. "Here, too, there's the same woman." Looking up at Yan Junze, he said, "Yes, we've thoroughly checked, wherever there are other people in the background, among these people, you'll find this long-haired woman present." Yan Junze examined closely and saw that the long-haired woman was wearing an entirely black long-sleeve dress, her complexion rather pale, with her dress sleeves a bit short, covering only up to her forearms as her hands hung down.