Sei learns of the fact that Yoshikazu Miyoshi (Asami Mizukawa) was once killed by a stalker at a mountain lodge where a mystery party was invited by Haruo Tenda (Kosuke Suzuki). Not only Kiwa, but the stalker is also dead from the toxic smoke of oleander in the fireplace. Before coming to the mountain lodge, Sei said, 'There is only one person who lie to the participants, so please take a look.' Talk about what you were asked to do. Then, Furo Hikaru was told by the heavens, 'I want you to see someone who doesn't lie.' Sei and Bath Hikaru begin to wonder if there is something wrong with Kiwa's case.The next morning, the awakened participants shovel the snow. When Sei asked Tenda about Kiwa's case, Tenda replied that although there was no evidence of a third party's invasion, he had always felt uncomfortable about the case. And Tenda asks Sei, 'I just want you to see the situation of the meeting without prejudice.' At that time, Furo Hikaru noticed that several branches of Oleander were broken.After shoveling the snow, when Sei and Furo Hikari are cleaning up the tools in the garage, a power outage occurs and the electric shutter does not open and is trapped. Sei takes out a flashlight from the tent that Takakatsu Tachibana (Kuranosuke Sasaki) put up in the garage. Sei and others are released by having the heavens open the door leading to the mountain lodge. The cause of the power outage was that the power line was cut off by the weight of the snow. Restoration will take until the evening, so I will eat lunch for the time being, and Sei will be asked to make curry. I noticed that there was something about the arrangement of observing the participants.

When Totonou Kuno (Masaki Suda) was thinking of going to an art exhibition to be held in Osaka, which he learned from Inudogaji (Eita Nagayama), a new serial murder case occurred at the Onei police station. I received a request for support. Seiko Furo (Sari Ito), nominated by Nariaki Aoto (Michitaka Tsutsui), heads for the investigation headquarters.The crime, which had already killed three people, is a bizarre case of abandoning her body like a crucifixion in the middle of an intersection. In addition, blood that does not belong to the victim is detected in the wound of the third body. Blood is consistent with the victim killed 22 years ago by DNA testing. It is Tokiko Tsuji, the 17th victim of a series of female assault murders by Gento Hagoku. The investigation headquarters is wondering if Hagaku, who had disappeared since he committed the 18th murder, has begun murdering again. However, the police officer Bizenjima (Eiichiro Funakoshi) says that it was not the crime of Hagoku. His subordinate, Toake Nekota (Wakana Matsumoto), agrees that the situation is different from the case of Hagoku. Furo Hikaru, who was listening to the conversation, was instructed by Bizenjima to form a buddy with Nekota.On the other hand, Iji was chasing a person named Jute in search of the truth about the death of Aiju (Mai Shiraishi). Then she finds out that Aiju frequently went to the warehouse district by her taxi during her lifetime. There, the darkness casino was held irregularly. After infiltrating the casino, I met Rumi Yokota  Natsuko) and was informed that Aiju was working at the casino.At the investigation headquarters, it is highly possible that the body was temporarily folded and carried. Nekota, who was listening to Furo Hikari, reported that a girl walking while pushing a suitcase was witnessed near her abandonment site. At that time, an anonymous person called Bath Hikari with a sauce for the incident.