The 2,641st issue of Nihonbungeisha 's Weekly Manga Goraku magazine published the final chapter of Yoshihiro Takahashi 's Ginga: The Last Wars manga on Friday. The series debuted in the magazine in 2015, and Nihonbungeisha also published the 20th compiled book volume on Friday.

Takahashi's original Ginga Nagareboshi Gin manga ran from 1983 to 1987 in Shueisha 's Weekly Shonen Jump magazine. The story centers on an Akita dog named Gin who joins forces with dogs from throughout Japan to battle the man-eating bear Akakabuto. The sequel manga Ginga Legend Weed then ran in Weekly Manga Goraku from 1999 to 2009, followed by the Ginga Legend Weed Orion manga from 2009 to 2014. The series also inspired the Ginga Densetsu Riki and Ginga Densetsu Weed Gaiden spinoffs.

ComicsOne released the Ginga Legend Weed manga in English.

The original manga inspired a television anime adaptation in 1986, and the Ginga Legend Weed sequel inspired a television anime in 2005. The original series also inspired a musical in 2005. A stage play adaptation of Ginga Nagareboshi Gin , titled Ginga Nagareboshi Gin - ~Kizuna-hen~ , is slated to run in Tokyo and Kobe in summer 2019.