Season 1

Arai Naoto, a CODA (Child of Deaf Adults) and ex- policeman, grapples with loneliness and personal challenges—having lost both his job and his marriage. However, his proficiency in sign language offers him a chance at a new start. He becomes a sign-language interpreter in court, leading him to a murder investigation and a surprising twist of fate. A two-part crime mystery adapted from Maruyama Masaki's best-selling novel “Deaf Voice”. A film version has also been announced in South Korea.