Octo: Emotional Investigator Shinno Akari S01 E07 Episode 7

Akari and Kazehaya are investigating Michiko, the suspect in the murder of Kawase, a building cleaner. Michiko confesses to killing Kawase, but refuses to reveal any motive. Akari cannot read any emotion in Michiko's eyes. She has had such painful experiences that she cannot survive without losing her emotions...