Paranormal Activity

Kimura Kazuki examined the photo closely. 

It was different from a censored animated film. The photo was in a much higher resolution and was non-pixelated. In fact, it was extremely detailed. However, it was extremely gory. No wonder Officer Matsushita's stomach churned when he arrived at the scene. He gagged, obviously feeling uncomfortable with the scenes. 

In the photos, Kotone Mikami's eyes were filled with terror. One could tell that she must have seen something terrifying before she died. That was how Kimura Kazuki knew that the 'Kotone Mikami' on the phone was not the real Kotone Mikami. 

In the biography section of Kotone Mikami's SOS post, there was a description of her recent unusual encounter, which meant that she was sincerely seeking help. When he contacted her, it would have made sense for her to tell him everything about the encounter in detail. In fact, if she was terrified, she would have asked him to come over as soon as possible.