Set against the background of student riots, war, and corruption, Hazama finds himself caught up in a series of circumstances which challenge his integrity as a person and his path towards becoming a surgeon. Hazama devotes himself to the world of medicine together with his friends, the intern Maiko Okamoto and the doctor Yabu. Despite only being a medical student, he is a brilliant surgeon and attracts attention after he completes seemingly impossible operations and displays greater skills than his formal training would allow. In the 1960s, Kuroo Hazama is a gifted young medical student with a dark past who tries to make a name for himself. The story follows Black Jack as a medical student in the 1960s. An anime adaptation aired in Japan from October to December 2015. It was serialized in Akita Shoten's Young Champion magazine between November 2011 and June 2019.

It is based on Black Jack by Osamu Tezuka and serves as its prequel. Young Black Jack ( Japanese: ヤング ブラック・ジャック, Hepburn: Yangu Burakku Jakku) is a Japanese manga series written by Yoshiaki Tabata and illustrated by Yūgo Ōkuma.