Episode 3

Makoto Tomen (played by Naoto Fujiki) and Naoko Takakura (played by Mai Shiraishi)'s lawyer, Naoki Aida (played by Takaya Ota), came to entrust an appraisal.Aida defended Juan Van Gill (played by Isaka Izumi), a skill intern who came to Japan from Vietnam.He set fire in a shared residence where he and his intern friends lived, and he was arrested by himself.Juan's fingerprint was detected from the plastic bucket left at the scene. Everyone except Juan went out at the time of the incident, which was obviously his crime.But security guards have remained silent since their arrest.

Because there is no room for defense to remain silent, Aida asks Tom to investigate the motive for the arson.Tumen, who was commissioned under Aita's strong will, first began to investigate the combustion residues (analysis of combustion residues).Although on-site identification is simple, I think more precise inspections are needed.

In order to entrust an analysis of the residue, Tomen and others visited Hiroka Oto (played by Yasuko Matsuyuki).While complaining, Oiteng accepted the commission. According to him, while using butane as fuel such as a cassette gas furnace, terpene components from plants were also detected.Afterwards, Tom, Takakura and Aita came to the fire scene together and raised questions about the absence of metal sheets in the gas cylinder and the lack of items for five people living in them.

Takakura and Aida also went to the president of the security skills internship company Dhakasu Kurose (played by Hitoshi Kataki).Kurose didn't seem to have thought of Huang An's arson motive, but Takakura felt something was wrong with Kurose's behavior...