Gabriel Boutin, a gay 19-year-old Blood Witch with bleach blond hair, dark roots, blue eyes, a slight stubble and a tattoo on his stomach, once alchemist under the control of the powerful witch Mercury. After his parents, Luc and Marie left him and never came back, Gabriel's life was marked by his reluctant servitude to Mercury, where he developed his alchemical skills. Now free from her control, he is a complex and wary figure, determined to carve out his own destiny despite his troubled past.