This year’s 50th issue of Shueisha’s Young Jump magazine has announced that Mengo Yokoyari will end the Retort Pouch! manga in the next chapter, which will appear in the magazine’s third 2019 issue on December 20, 2018.
Retort Pouch! launched in Shueisha’s Miracle Jump magazine in April 2014, when the magazine returned from hiatus as a monthly publication. When the magazine again went on hiatus in March 2017, the manga briefly moved to Shueisha’s Tonari no Young Jump website in April 2017, before resuming in Young Jump in May 2017. Shueisha published the manga’s sixth compiled book volume on July 19, 2018.
Source: ANN