This year’s 19th issue of Shueisha’s Weekly Young Jump has announced that Sankaku Head’s Himōto! Umaru-chan G manga will end in the magazine’s next issue on April 19, 2018. The series launched as a sequel to Sankaku Head’s earlier Himōto! Umaru-chan manga in Weekly Young Jump in November 2017.
Sankaku Head launched the original Himōto! Umaru-chan manga in Weekly Young Jump in 2013 (after running an earlier two-chapter Himōto! Umaru-chan! version in Miracle Jump in 2012), and ended it in November 2017.