The 21st issue of Kodansha’s Evening magazine has announced that Seimaru Amagi and Fumiya Sato are launching a new manga in the magazine based on their Kindaichi Shōnen no Jikenbo R (The File of Young Kindaichi Returns) manga in next year’s fourth issue on January 23, 2018. The new series will also focus on the titular character Kindaichi; however, while Kindaichi is a high school student in the current manga, the new manga will age everyone up, casting Kindaichi and Miyuki as adults.
A short manga accompanying the announcement explains that Amagi and Sato are still considering a title for the series, though Miyuki jokingly offers the title “The File of Middle-Aged Kindaichi.” The characters also note that the manga’s move from a shōnen magazine (Weekly Shōnen Magazine) to a seinen magazine (Evening) might also allow for scenes where characters drink, smoke, gamble, and have sex, but the characters dismiss the possibility.
This year’s 45th issue of Kodansha’s Weekly Shōnen Magazine is also revealing that Kindaichi Shōnen no Jikenbo R will end in the magazine’s 46th issue on October 18, 2017. Amagi and Sato launched the manga in Weekly Shōnen Magazine in March 2012 and Kodansha published the manga’s 13th volume on September 15, 2017.