According to Anime News Network, ARIG magazine published the last chapter of K: Countdown by Rei Rairaku and Yui Kuroe.
Fans don’t need to fret over the manga’s closing, because a spin-off manga titled K: Dream of Green will soon be published by ARIG. K: Dream of Green will follow the series story from the King and the Green Clan, Hisui Nagare.
The main story of Dream of Green will be first released in ARIG’s December issue with the prologue chapter appearing in the November issue. The first volume of K: Countdown will be published in Japan by Kodansha on September 7 and the second volume will be released on October 7.