It was initially serialized on the user-generated novel publishing website Shōsetsuka ni Narō from September 2019 to July 2020.

An anime television series adaptation produced by Felix Film and Ga-Crew aired from October to December 2024.

Written by Jaki, The Most Notorious "Talker" Runs the World's Greatest Clan was initially serialized on the user-generated novel publishing website Shōsetsuka ni Narō from September 7, 2019 to July 25, 2020.

[9] An anime television series adaptation was announced during the third livestream for the "10th Anniversary Memorial Overlap Bunko All-Star Assemble Special" event in April 2024.

It is produced by Felix Film and Ga-Crew, and directed by Yuta Takamura, with scripts written by Takayo Ikami, and characters designed by Kenji Terao.