Keiji 7-nin

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...!?
 

The body of Takeshi Shinomiya (Tai Kageyama), a wealthy landowner who lives in a large mansion, is found in the bathroom of his home. While he was bathing, he was electrocuted by having a stun gun thrown into the bath. Amagi Yu (Higashiyama Noriyuki) and other members of the new full-time investigative team investigate the mansion, and since the security camera cords have been cut, they are considering a premeditated crime.
The next morning, while attending a class reunion in Shizuoka Prefecture, Takeshi's wife, Yumi (Arisa Mizuki), who was away from her, visits the morgue and has a silent reunion with her husband. At that time, Amagi silently stares at the tears she shed.
On the other hand, Sakashita Michitoshi's (Kotaki Nozomi) interview revealed that there was a discrepancy with Yumi's alibi for the day of the incident. Masatoshi Katagiri (Kotaro Yoshida) perceives danger in Yumi's mysterious charm and orders her to investigate her surroundings, but Amagi has already read the details of Yumi's documents...
Amagi goes to the mansion and tells Yumi the facts he found, such as that Yumi was injured in an accident a month ago, and that although he divorced Takeshi once ten years ago, he remarried three years ago. Hit. However, at that time, Yoshiki Ebisawa (Seiichi Tanabe), who was present together, screamed! I stumbled on the stone steps in the garden and was on the verge of getting my face stuck in a stake... Yumi was staring at the situation from her porch.
'Furthermore, a chandelier fell from the ceiling right in front of Amagi!'
This place looks like a <> that was crafted by someone...
After that, it was found out that all the maintenance of the garden was done by the gardener, Kazuma Zaizen (Yuki Nomura), and that Yumi would inherit all of her property after Yumi's death in her will. I found out that I was rewriting the book. After all, is it a crime aimed at Yumi's property...!?
Before long, Yumi stared at her with her lustrous eyes and approached Amagi. What are her thoughts? At that time, Amagi...!?　The shocking truth about Yumi was discovered.

An unpopular back alley. Minoru Sakashita (Nozomu Kotaki) gives cash to a suspicious man Komuro (Hideaki Washio). Komuro counts the money and laughs fearlessly...
On the other hand, the new full-time investigative team receives news that police chief Masatake Yamagishi (Shingo Tsurumi), who works at the police box, has been shot. Yu Amagi (Kiyuki Higashiyama) and other members of the new full-time investigative team head to the crime scene, where they find the dead body of Yamagishi, who has been holding onto a traffic sign for some reason after fighting with the criminal. After a while, the first investigative section chief and the members of the first section appear on the scene. Surprisingly, there is a high possibility that the bullets found in the bodies were of the same type as the guns used by the Metropolitan Police Department, and the police killed the police officers!?
　Following investigation by the First Investigative Division, the bullet used in the crime matched the one used by the police officer who was shot dead in the Hachioji police murder incident 12 years ago. According to Koshimizu Yuuto (Yuge Tomohisa) of Higashi-Hachioji Police Station, who is continuing the investigation, Furuichi Jun (Akagi Yo), a high school student at the time, was found shoplifting at a supermarket. It is believed he was shot and killed. There was also a theory that he had undergone plastic surgery and escaped, but he has not been caught until now, and if the murder weapon was used at that time, could it be Furuichi, who has gone into hiding? In the midst of this, Michitoshi returns home on time, despite the fact that a police officer was killed in a big case that is also connected to an unsolved case 12 years ago. At that figure, Amagi was staring at him quizzically...
Later, Amagi and Takumi Nonomura (Jin Shirasu) interview Kazuhiko Doi (Shunya Toyama), a cleaning staff member at the scene where Yamagishi was murdered. According to Doi, about a month ago, Yamagishi had a dispute with an elderly homeless man. Also, according to a junior former police officer, Yamagishi had a bad work attitude and was asked for money at times, but the reason why he became rotten was that he missed Furuichi, who was on the run. He says that's what caused it. In addition, there were rumors that he received money from Furuichi and deliberately overlooked it.
And then, Amagi finally followed Michitoshi, who returned home on time as usual. Then, where Michitoshi is headed, Amagi encounters an unexpected scene. Before long, Amagi learns of Michitoshi's hidden past...