Reina, a married woman who can't let go of her headphones, feels unsatisfied even after her marriage, and every time she remembers the passion she felt in the past, she builds her own world in music.Meanwhile, Atsushi, a young man who works at a convenience store, grows to admire and become obsessed with Reina, and before he knows it, her existence becomes his reason for living.As her admiration turns into madness and the boundary between reality and fantasy becomes blurred, Reina's ``world of sound'' is gradually invaded.Unseen gazes, unheard voices, everything begins to distort in the silence...
