Trace ~ Men of the science school ~

Reiji Mano (Ryo Nishikido) discovers that his sister who was murdered 25 years ago as a high-school student was pregnant, as he tries to gather more evidence related to this from the school teacher. Meanwhile, Nonna attends a drinking party after being invited by staff members from work.

Reiji Mano (Ryo Nishikido) receives a call from somebody with a desire to talk about his brother. When Reiji goes to the location to meet the mysterious person from the call, nobody turns up. Meanwhile, a body of a homeless man is discovered at a riverbed.

Reiji Mano (Ryo Nishikido) receives a request from Ryohei Toramaru for a diagnoses. It turns out that a body had been discovered near a mountain road. Meanwhile, test results reveal that the victim had been serious hit in the head.

Reiji Mano (Ryo Nishikido) and Nonna Sawaguchi (Yuko Araki) attend a murder site, after a body is discovered at an apartment by the owner, after receiving reports from people, that they are unable to get in contact with the individual. From evidence which are left at the site, there is a high possibility that the killer had used a deadly knife.

Reiji Mano (Ryo Nishikido) receives a request to go ahead with some DNA tests of a young girl who may have been strangled to death.The girl’s body had been discovered by police in a forest, after reports of her disappearance from her mother.

Reiji Mano (Ryo Nishikido) and Nonna Sawaguchi (Yuko Araki) gets asked by Ryohei Toramaru to do some DNA tests for a murder incident of a doctor at an inauguration party. It turns out that he had apparently fallen off the balcony of his room and was discovered by his daughter.

With a background which revolved around the world of conspiracy, Reiji Mano (Ryo Nishikido) is a researcher who works at Science Research Institute. With a strong belief that truth can be revealed through a proper diagnosis, he’s a very distinctive character compared to his co-workers. One day, a detective from the police department comes to visit Reiji Mano in order to attain forensic results about a major murder incident which had taken place at an event.