The red eye sees what you can't, and every ghost has a reason for staying behind, usually a reason that gets people killed. Yakumo doesn't solve mysteries; he translates the dead into evidence, which means the real horror isn't the supernatural, it's the humans who'll murder again to keep those ghosts silent. You're watching a girl stumble into cases where talking to the dead is only the first problem.
Haruka stumbles into a nightmare when her classmates start dying under impossible circumstances. One friend is possessed. Another takes their own life. As bodies pile up around her, Haruka realizes she might be next. Her salvation comes in the form of Yakumo Saito, a cold and antisocial student harboring a dangerous secret: one of his eyes is red, allowing him to see and speak with the dead. The spirits know what happened to them, and they're desperate to share the truth. Together, Haruka and Yakumo become an unlikely detective team, piecing together mysteries that the living world wants buried. But ghosts aren't the only problem. Real killers walk free, and they'll do anything to silence the dead before their crimes see daylight. A corrupt detective and an ambitious journalist complicate matters further, each pursuing their own agenda in cases where murder is just the beginning. What starts as Haruka's survival instinct transforms into something larger: uncovering the dark secrets that connect death, guilt, and revenge. The dead demand justice, and Yakumo might be the only one who can deliver it.