Mariko is a forensic scientist working at the Kyoto PD Crime Lab. Her credo is “science never lies” and she delves into the truth of the case with her colleagues with their specialized skills and knowledge in forensic medicine, physics, chemistry etc. Mariko’s steadfast belief in science makes her stand against conventional institutional ethics of the police department, diehard detectives averse to scientific investigation and sometimes even with her own colleagues, but she stays faithful to her belief in science and continues to pursue the truth.

Yuka (Michiko Hada), a document appraisal engineer at the Institute of Scientific Research, sees a young woman fall from a building. By the time Yuka rushed to the scene, the woman was already dead and had something like a suicide note in her hand. You can feel the clearness of the character settings.