Black Bloods and Red Bloods, vampires and humans. Despite their differences, these two races once fought together in a crusade against a formidable foe. A decade later, the vampire war hero Jirou Mochizuki, known as the Silver Blade, travels with his younger brother Kotarou to the Special Zone—a safe haven where vampires and humans live in harmony. However, their journey is suddenly faced with danger when a conflict erupts between vampire migrants and human forces from the Special Zone. With the rise of a developing conspiracy from an old enemy, Jirou will need the help of his new ally, Mimiko Compromiser Katsuragi, as well as the power of his ancient bloodline to protect what he treasures the most.

As a lionhearted boy who can’t wield magic strives for the title of Wizard King, four banished Wizard Kings of yore return to crush the Clover Kingdom. (Source: Netflix)

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.