The manga went on hiatus in March 2017 so that the creators could prepare for the manga's next arc, and resumed in February 2018. Akita Shoten's Young Champion magazine teased in February that the manga was approaching its climax.
The manga is a prequel to Black Jack, Osamu Tezuka's classic series about a brilliant maverick doctor who practices without a license. The prequel follows Black Jack when he was still a young, unorthodox medical student in 1968.
Ōkuma and Tabata launched the manga in Young Champion in November 2011.
Source: Comic Natalie