The story centers around the so-called "Relics"—mysterious items with special powers that range from obviously lethal to deceptively harmless—and the damage they bring about. Again and again, Tokiya Kurusu and Saki Maino, both of which work at the Tsukumodo Antique Shop (FAKE), get into difficulties that involve Relics, and have to find a way out. Why do they seem to be haunted by such incidents and what kind of fate is awaiting them...? Very well, let us talk about the never-smiling girl and the death-seeing boy, and the strange incidents they become entangled in.

Segawa Takumi is a young man who used to not involve himself with others. He wasn't like that when he was little, but changed with adulthood. As soon as someone around him was showing too much interest toward him, trying to pray into his past, he would immediately change his address and work in order to reset everything. And above all, he used to keep his mouth shut about that little something he was able to do, and that no one else around could. Not that anyone would believe him anyway. It would just make others ostracize him for being creepy. Because Takumi can see ghosts, and freely talk with them as well. Forget about the misconception that ghost are full of hatred or other ill feelings. They aren't. They're actually often nicer than they were while they were still alive, as if dying and being liberated from their body washed away that kind of things, only leaving some lingering feelings stopping them from moving on. But isolating himself from others is no longer an option. Takumi is now a new employee in a company where everyone is like him. They use that little something others don't have to work for insurance companies and police behind the scenes, asking the ghost directly for the circumstances of their death, unofficially leading the cases toward their rightful conclusion. And also, part of the pride of this job is to help those ghosts to pass on after they completed the insurance company or police request. As a new employee, Takumi will have to learn from his seniors how to understand them, and deal with their lingering feelings, one way or another. But can someone who rejected others for all those years really understand how they feel?

Rumors about love fulfillment charms sold by a Shinto shrine, and the students who came there for an extracurricular activity. Among them were Kuryuu Izumi and Shikiyomi Mikoto. Those two are matchless geniuses among the other students from the same school year but, they always end up exchanging cynical words when they meet each other. Those two's relationship had nothing to do with a love fulfillment charm. The other students were a strange bunch. Believing in the charm's power, and conscious of each others. But that frivolous atmosphere will change completely. The childish love fulfillment brings deaths, one after another. This is a curse. Or could it be... What is the truth that Izumi and Mikoto knows as they're drawing near the source of the mystery?