Weekly Shonen Jump magazine from Shueisha revealed that it will publish a new bonus chapter for Kaiu Shirai and Posuka Demizu 's manga The Promised Neverland in the magazine's first 2021 issue, which will be released on December 7th. The new chapter is a one-shot and will focus on Sister Krone's past, featuring a color page in the center.
Shirai and Demizu launched the manga The Promised Neverland in Shueisha's Weekly Shonen Jump magazine in August 2016 and ended its publication on June 15.
Source: ANN