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.