The Ignis Alchemist

Generations after the Fullmetal siblings, a new pair arrives that goes by the name Rena and Boris. Yet when they commit the taboo to bring back their long lost sister, they are caught between the brink of the truth and lie. Fortunately they live with a scar of an abnormal color on their eye. As they were passed out, Rena and Boris are torn apart from each other, meeting again after a near decade. But instead of a loving, heart warming scene, they meet with blood lust, their souls full of hatred of each other. Yet that is not the only problem that resides; Homuncoli are reviving from a man unknown to them, the danger lurking past them into an ambush. Although the Homuncoli are bad themselves, their own lovers are even difficult to murder.