The Triplets' Final Regret

Elisa Carter, a half-human and half-vampire girl loved and cared for the Lockhart triplets. She even wanted to become a full human and marry one of them. But when they brutally abandoned her for the maid's daughter—Amber, Elisa's heart was shattered, and she was stripped of her dignity. Hence, as Elisa turned eighteen, she transferred to night school and became a full vampire.