In the new full-time investigative team, Sakashita Michitoshi (Kotaki Nozomu) is called the "Prince of the political world" and refers to the popular Minister of Education, Culture, Sports, Science and Technology Koichiro Muratomi, and Masatoshi Katagiri (Kotaro Yoshida)'s work attitude and leader. was criticized for his qualities as
Around the same time, the Chief Inspector's Office of the Metropolitan Police Department. Katagiri was summoned by Chief Inspector Masaki Tetsuya (Yamada Jundai). According to Masaki, the first trial of Yoshiharu Kondo (Yoji Matsuda), who was arrested on suspicion of causing death by injury by Michitoshi, was held, but a testimony revealed that Kondo had a clear alibi at the time of the crime. In addition, Kondo confessed that Michitoshi forced him to confess. Masaki urges Katagiri to choose between handing over Michitoshi's head or taking responsibility for the new full-time investigative team as a whole.
Katagiri goes to the scene of the incident Kondo allegedly committed. Freelance writer Maki Daigo (Hayashi Kazuyoshi) was pushed down the stairs by someone and died. Just before that, Kondo, who was arguing with Maki at an izakaya, admitted to the crime and confessed. However, the testimony of Yumi Fujishima (Akiko Hinagata), who runs a small restaurant and appears as a witness for the defense in the first trial, reveals that Kondo has an alibi. Did Michitoshi really force a confession? And is Kondo falsely accused?
Katagiri, who is investigating Kondo's background again, focuses on his previous job and goes to Shigeru Kuwai (Taro Suruga) in the Ministry of Education, Culture, Sports, Science and Technology. He asks for the disclosure of a document from 10 years ago, but it ends in vain. Katagiri, who has no other choice, gives Yu Amagi (Kiyuki Higashiyama) a bulletin and asks him to investigate the trends of the Ministry of Education, Culture, Sports, Science and Technology 10 years ago. Then, on the same day that Maki fell to his death, it was discovered that Yokozaki Takashi (Hyuga Jo), who was the private secretary of Minister of Education, Muratomi, was also found dead. When I re-investigated, it turned out that I had met with Maki just before that. After all, Kondo was falsely accused, and Yokozaki caused Maki to fall to his death, and then jumped to commit suicide...? Then, Michitoshi's emotions explode, as he perceives this as a roundabout message from Katagiri about the flaws in his own investigation.
Focusing on Amagi, when Kondo, Maki, and Yokozaki's relationship was reexamined, they eventually found a point of contact. It's a collusion issue related to the Ministry of Education, Culture, Sports, Science and Technology 10 years ago...
'Is there an ``invisible force'' at work in Kondo's trial?' 'What happened to Michitoshi?' 'What will happen to the new full-time investigative team!?'
'Amagi's obsessive investigation approaches the truth of the darkness that has shaken the nation!'

Satoshi Sakashita (Nozomu Kotaki) and Takumi Nonomura (Jin Shirasu) climb the mountains of Okutama in order to deliver belongings to the bereaved family. This memento is Sachi Koyanagi (Ryoka Morita), who died six months ago when he went on a night hike with his college circle friends to see the sunrise, and on the way he slipped off the mountain trail and hit the back of his head. ).
Before long, Michitoshi and Takumi arrive at a mountain villa owned by Tetsuo (Yoji Tanaka), Sachi's father and a mountain photographer. After her daughter's accident, she says she is spending time alone at this mountain lodge, where cell phones are out of range. The two are welcomed into the room, but Michitoshi notices evidence of a rain-soaked umbrella left at the entrance and traces of ashes from burning incense a little while ago. Is there anyone other than Michitoshi, Takumi, and Tetsuo at the villa?
Michitoshi leaves behind saying, 'If I don't go back, Takumi-san will go outside,' and begins investigating the inside of the villa on his own, but is caught by Tetsuo with a hunting gun. With a hunting gun pointed at the back of his head, he is taken to a room where five members of Sachi's university circle are locked up...!? . Michitoshi was amazed at the useless Takumi. On the other hand, Yu Amagi (Kiyuki Higashiyama) is concerned about Sachi's accident documents, so he goes to Shuntaro Domoto (Kinya Kitaoji) who was in charge of the autopsy. Originally, it was not a case that an autopsy would have been carried out, but it was carried out at Tetsuo's strong request. Tetsuo thinks Sachi's death wasn't just an accident, so he's resorting to brutality...!? I was asked what was left...
Tetsuo reveals that it is impossible for Sachi, who has been familiar with the mountains since he was a child, to fall, and that he has also discovered certain 'evidence', and orders the five circle members to discuss and find the culprit. The time limit is 3 hours. Furthermore, he declares that if the culprit is not found, he will set fire to the villa.
Michitoshi searches for a way to escape, and Takumi utters a pitiful voice, 'If only Amaki-san was here.' And Amagi, who is worried about the safety of Michitoshi and Takumi, arrives at a certain truth from the materials of the accident...!?