The Blood Night Market — a corrupt city where humans and vampires coexist uneasily, bound together by an underground economy built on blood.

This whole market is controlled by a group of humans with “undesirable blood”, shaped into weapons and abilities, called the Blood Control Bureau, who oversee disputes and illegal dealings between vampires and humans alike. Lately, a case of “farmer’s blood” has been brought up, illegal blood seeking by a group who plan to take over the market and are actively trying to create Ambrosia blood.

Ambrosia, a rare type of human blood said to intoxicate vampires with irresistible flavor and strength and healing abilities. Those born with it are hunted, trafficked, and consumed like living treasures, fueling the Market’s cruelty.

The one thing that interests Mozu in life. But he’s not so cruel as to go to such lengths, he wishes to meet Ambrosia and drink from her with affection and admiration.

That is his sole purpose.

Sotetsu, a human whose blood is officially deemed “undesirable,” works at the Blood Control Bureau, overseeing disputes and illegal dealings between vampires and humans. Outwardly, he’s an ordinary enforcer keeping the fragile balance intact—but his blood hides a secret far more valuable than anyone realizes. His life takes a turn when he encounters Mozu, the flamboyant, unpredictable vampire gourmand who defies the Bureau’s rules. Unlike most of his kind, Mozu isn’t just hungry for blood—he’s fascinated by it, savoring its subtleties like fine wine. And for reasons Sotetsu doesn’t understand, Mozu becomes fixated on him.

What begins as a dangerous encounter spirals into a reluctant partnership. Mozu, with his cunning and flair, forces his way into Sotetsu’s life, dragging him deeper into the labyrinth of the Market’s underworld. Their uneasy alliance places them at the center of conspiracies surrounding Ambrosia—its trafficking, its victims, and the powerful forces determined to control it. Together, they must navigate shifting loyalties and blurred lines between predator and prey, discovering that survival in the Market demands not just strength, but trust in the most unlikely of bonds.

They are bound together by the seed of life growing inside Sotetsu, caused by Mozu, inevitably bringing them together in power and friendship.

It was any other day, Mozu getting ready, putting on his hat and sash while Sotetsu still slept. Mozu was up earlier than normal.

He glanced at Sotetsu, thinking but shook the thought away. “Hmm… maybe I’ll get steamed buns for him..”