An OVA episode bundled with the 11th manga volume.

The special episode features the captains of the different squads plus Asta and Yuno participating in a quiz show.

The year is 1580. Using an army of soldiers equipped with sophisticated weaponry, Nobunaga Oda is on the verge of ruling Japan with an iron fist. One of his enforcers is Ginnai Doma - a fallen samurai reborn into an indestructible killing machine. As Ginnai continues his killing spree on ninjas and those who oppose Nobunaga's rule, Shishimaru of the Iga Ninja - going against the Koga Ninja's plans - pursues a one-man vendetta to avenge the deaths of his comrades and kill the immortal warrior. (Source: ANN)

Kuroo Hazama, also known as Black Jack, is a legend in the medical world. Famous for being one of the best, as well as not having a license, Hazama and his assistant Pinoko save countless lives that other doctors cannot... for a price; an exorbitant price, in fact, which causes many to view the genius as greedy and heartless. Despite these claims, however, none can deny his skill and the lengths that he will go to treat his patients. This dark medical drama tells the story of the ominous and mysterious world of underground medicine as Black Jack risks his life to cure some of the most bizarre diseases imaginable, even if it means breaking every law in the process.