In a world full of lies, her gift makes honesty the greatest mystery of all. In 1920s Japan, teenage girl Kanoko has an unusual gift—she can hear when someone is lying. After being ostracized from her hometown, she meets Iwai Soma, a charming but penniless detective. Together, they form a partnership solving small-town mysteries with Kanoko’s uncanny ability and Soma’s sharp instincts. Usotoki Rhetoric blends historical charm, cozy mystery, and gentle humor into a heartwarming story about trust, truth, and belonging.