A historical mystery set around Oji in the Edo period, following a broadsheet writer as he investigates disappearance and rumors of the uncanny. It folds Kita City's local history into the plot, linking place memory with mystery.

The mystery rises out of local memory, as if the reader were walking through Edo-period Oji.

A Special Prize and Asami Mitsuhiko Prize winner of the Kita Ward Uchida Yasuo Mystery Literary Award. It uses the ordinary act of listening to others as the hinge for a humorous mystery.

Becoming a listener opens the way into an unexpected mystery.

A Special Prize-winning work of the Kita Ward Uchida Yasuo Mystery Literary Award. The title and award record are confirmed in official and prize data, while publication information appears limited to award records or periodical publication.

Under the title Tanjo, it remains in the award record as a short mystery.