After receiving Nangong Natsuki's request, Airi left school after classes, leaving Nagisa and the others in Yukina's care while she took the train to Artificial Island No. 12.
On the train, Airi took the opportunity to investigate information about Artificial Island No. 12.
According to the information, Artificial Island No. 12 had been constructed by a conglomerate called the Kirijo Group, primarily for psychological research and mental health treatment. Compared to other Artificial Islands, it had much less of a modern atmosphere, focusing instead on "healing the heart amid rural fields and nature."
However, ten years ago, an accident had occurred at a Kirijo Group research institute, causing numerous casualties. The entire institute had been sealed off afterward, and the island itself had been left in a semi-abandoned state. With no further developers arriving, Artificial Island No. 12 now felt more like a rural district of Kagami Island. It had long since lost its original function and was now mainly responsible for agricultural work such as crop cultivation.
This request for a joint investigation had come from the Iwato Dai Branch on Artificial Island No. 12. According to the information sent over, three serial murder cases had occurred so far. The victims were a television station host, a convenience store clerk, and a director of Artificial Island No. 12.
There had been no witnesses in any of the three cases, and the police had found no traces left by the culprit at the scenes. There were likewise no lingering signs of magic, curses, psychic powers, or anything similar. Yet no matter how one looked at the victims' gruesome deaths, they did not appear to be suicides. Thus, the Iwato Dai Branch had submitted a request to the Artificial Island Management Company, hoping Demon Hunters would come investigate.
As for the