The second and third combined 2018 issue of Weekly Young Magazine has announced that Akira Hiramoto's Prison School manga will end in the 4th and 5th combined issue.

Prison School began its serialization in February 2011 and currently has 27 compiled volumes in print, with the latest volume being published on November 6. The manga won in the Best General Manga category at the 37th Kodansha Manga Award in 2013. J.C.Staff adapted the series into a 12-episode TV anime in Summer 2015 with an OVA bundled with the 20th compiled volume in March 2016. The Fukukaichou Ganbaru. spin-off manga by ReDrop began in Young Magazine the 3rd in August 2016 and ended recently with 14 chapters on October 6.

Yen Press has been publishing the manga in English in 2-in-1 omnibus format since July 2015. Funimation licensed the anime series for North American distribution and released it in a Blu-ray and DVD volume in November 2016.

Source: Mantan Web