Aina spent her childhood on the streets of Kosin. A city full of mystical rituals, forbidden magic, sacrifices and illegal diamond trade. Aina grew up in a world of poverty and violence, but the King on the Blood took her under his protection. He raised the girl and made her an assassin. Now eighteen-year-old Aina is a street thug who wants more from life than her origins can give. For her, the only chance to achieve something is to smuggle diamonds behind her boss's back. To break with the past and find the long-awaited freedom, Aina must carry out the contract killing of the King of Diamonds. To do this, you will have to risk everything, but there is no choice: Aina’s own life is at stake.