- Yagami Keisuke (Funakoshi Eiichiro) is caught red-handed by the police as a suspect in a series of arson cases. He is deaf and also does not use sign language. The interrogation proceeds with difficulty in the face of his "complete silence".
Abiko Kento (Asari Yosuke), the rookie detective assigned to the case, heads to Yagami's home to search it. He finds a 7-year-old girl (Watanabe Konomi) in the home where Yagami supposedly lives alone. Who is this child?...