Gintama is a Japanese manga series written and illustrated by Hideaki Sorachi. It was serialized in Shueisha's shōnen manga magazine Weekly Shōnen Jump from December 2003 to September 2018, later in Jump Giga from December 2018 to February 2019, and finished on the Gintama app, where it ran from May to June 2019. Its chapters were collected in 77 tankōbon volumes. Set in Edo, which has been conquered by aliens named Amanto, the plot follows samurai Gintoki Sakata, who works as a freelancer in his self-established store, "Yorozuya", alongside his friends Shinpachi Shimura and Kagura, offering a wide range of services to handle various tasks and odd jobs. Sorachi added the science fiction setting to develop characters to his liking after his editor suggested doing a historical series.

Weekly Shōnen Jump is a weekly shōnen manga anthology published in Japan by Shueisha under the Jump line of magazines. The manga series within the magazine consist of many action scenes and a fair amount of comedy. Chapters of the series that run in Weekly Shōnen Jump are collected and published in tankōbon volumes under the Jump Comics imprint every two to three months. It is one of the longest-running manga magazines, with the first issue being released with a cover date of August 1, 1968.