Usotoki Rhetoric Manga Volume 4 features story and art by Ritsu Miyako.

It is 1926, the first year of the Showa era. Kanoko, a girl who can hear lies, and impoverished but cunning detective Soma Iwai now face a murder on a solitary island. Meanwhile, Chiyo Fujishima, a big fan of detectives, has her own case to solve. This volume also includes a special short with a retro-modern back-alley tale of mystery!