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Noa has struggled with hearing unsettling voices since she was a child. But when a mysterious murder takes place, the voice in Noa’s head urges her to uncover the killer. With the police skeptical and her sanity on the line, Noa must navigate a web of fear and suspicion, guided by a ghost, to catch a ruthless killer before she herself becomes the serial killer. Will Noa uncover the murderer, or will her own mind betray her? (Source: WEBTOONS)