Toume launched the original manga in Kodansha’s Morning magazine, where it ran from 1997-2001, after which it went on hiatus until the launch of Kurogane Kai.
This year’s 20th issue of Shueisha’s Grand Jump magazine revealed on Wednesday that Kei Toume will end their Kurogane Kai manga in the next chapter, which will appear in the magazine’s 22nd issue on October 21.
The manga is currently on hiatus, and will resume on October 27.
Toume launched Kurogane Kai in Grand Jump in February 2017.