Meiji Restoration Mystery Tour: Investigation Chapter The Detective Boys are at a shrine dedicated to Shōin Yoshida, a famous figure of the Meiji Restoration. While there, they witness two men attempt to wrestle a book from a woman named Kimiko Kobayakawa. After the two men flee, Kobayakawa explains that the two men are after her grandpa's diary which contains the location of a treasure which could buy a country. Kogoro, Ran, and the Detective boys decode the diary to find the location of the treasure. The picture depicts a fox staring at a stream full of carp with the message "Feed the carp to the fox" beside it. Kobayakawa assumes it means the stream of carp she has at her house and takes them to Tsuwano; on the way, they meet up with Kobayakawa's boyfriend, Shigeru Kawaguchi, and her servant Tsuneo Kikkawa...