The March 2019 issue of Kodansha’s Bessatsu Shōnen Magazine has announced that Shūzō Oshimi’s Happiness manga will end in the magazine’s next issue on March 9, 2019.
Oshimi launched the manga in Bessatsu Shōnen Magazine in February 2015, and Kodansha published the manga’s ninth compiled volume in November 2018. Kodansha Comics is publishing the manga in English.
Source: ANN