The day before her birthday, Akane is asked to retrieve her birthday present from her aunt Chi's shop. While looking around, she chances upon a mysterious slab with a hand-shaped cavity in it. Curious, she places her hand in it, and—to her surprise—it fits perfectly. The next thing she knows, a strange alchemist named Hippocrates and his apprentice Pipo appear, calling Akane the legendary Goddess of the Green Wind. The two eccentrics claim to be from a different world connected to the shop's basement. With the peace of their world in jeopardy, Hippocrates and Pipo seek the help of the only one capable of saving it from destruction: Akane. Forced to accompany them on a journey to restore the land's harmony, Akane—with her aunt in tow—sets off to discover a magical new place.

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.