Blood Oath Between Wolf and Vampire

In a medieval city-state, a cursed wolf outcast and a vampire duke burdened by guilt accidentally awaken a forbidden blood pact through the Eclipse Heart, binding their lives together against their will. Once wary rivals, they must face vampire tyranny on one side and the brutal warriors of the wolf clans on the other. Their uneasy bond pushes them toward a fragile alliance that could finally break a century of bitter hatred.