Tohru Adachi

Inaba is a rural Japanese town with a small population. There isn't much to do here. The department store Junes is the closest thing there is to fun. The town has recently been stricken with a thick fog that makes it difficult to see.

Dojima is Adachi's partner and boss at the police station. Both of them are working on the murder cases involving Mayumi Yamano and Saki Konishi. Dojima is rough with Adachi and bosses him around. When Adachi is around Dojima, he puts on an agreeable persona, but his unreliability tends to get him in trouble with Dojima anyway. Despite their unpleasant dynamic, Dojima is the closest thing Adachi has to a friend in Inaba.

Nanako is Dojima's six-year-old daughter. Adachi bears no ill will towards Nanako and thinks she's a cute kid, but in the back of his mind he figures that it's only a matter of time before she grows up into a despicable person just like everyone else. While he puts on airs of genuine concern when Nanako goes missing, inside he believes it's just an unfortunate side effect of his plans.

The Midnight Channel is the name of an alternate world inside televisions, as well as the "television program" that appears at midnight on rainy nights. The Midnight Channel is filled with dangerous Shadows. Adachi used the Midnight Channel to murder both Saki Konishi and Mayumi Yamano by simply pushing them inside the TV and allowing the Shadows to do the rest.

Mayumi Yamano was an anchorwoman who had an affair with government official Taro Namatame. Adachi had a fondness for Yamano, and internalized her as some sort of soulmate after seeing her on TV. While Yamano was staying in Inaba, Adachi was assigned to guard her from the public. Adachi asked Yamano if the rumors about the affair were true, which she refused to answer. Adachi became furious and disgusted with her and pushed her into the TV.

Saki Konishi was a high school student who happened to be the first person to find Yamano's body. Saki was interviewed multiple times by the police, but didn't have any useful information. While interviewing Saki, Adachi attempted to make an advance on Saki, which she firmly rejected. He pushed her in the TV as retribution.

Taro Namatame is a former government official who had an affair with Mayumi Yamano. In the resulting scandal, he lost his job and began a new life in Inaba as a delivery driver. Namatame believed he could 'save' those who appeared on TV by putting them inside the Midnight Channel. Adachi encouraged this belief when Namatame initially called the station, and Adachi hoped that more people would die inside the TV world. Adachi sees Namatame as a ridiculous, naive pawn.

Yu Narukami is a high school student and the leader of the Investigation Team. After moving to Inaba, Yu formed many bonds with the people of Inaba and saved those who fell into the Midnight Channel. Adachi thinks Yu is naive and bothersome, but nonetheless sees his younger self in Yu.

The Investigation Team is the group of high schoolers who are investigating the murders and saving people who fall into the Midnight Channel. Adachi isn't particularly interested in any of them as individuals outside of Yu.

Izanami is the goddess of creation and death. Seeking the truth of humanity's desires, Izanami awakened abilities in three people: Namatame, Adachi, and Yu. She is the one who gave these three the ability to bring others into the TV world. Izanami also split herself into parts, and hid one of these parts inside Adachi, seeing that his actions had the most effect on humanity.