Schwarzer Blutbund

Hidden Omega assassin Julian enters a castle to kill crime boss Dominic. A traitor shatters his disguise, releasing white-tea pheromones. Alpha Dominic overpowers and marks him, exposing him. Caged as a trophy, Julian forces Dominic into a contract marriage. As gangs and toxins close in, the truth emerges: his father Victor sold him as a suicide bomber. Julian becomes Dominic's life-and-death ally. Dominic offers neck and heart. Bound by blood oath, they shatter the ABO hierarchy and ascend.