My lover, please wake up

Roman Greythorne, heir to the Greythorne family, was forced as a child to watch violent videos by his parents, which caused a mental breakdown and the emergence of a second personality, Gassius. From high school onward, they secretly alternated, posing as brothers. In college, Roman met Lorian Frostvale—a hidden underworld heiress—and they started a relationship after graduation, though Roman never revealed his secret. Lorian became a lawyer intern, but at a celebration banquet, Roman inexplicably jumped to his death. Three years later, Gassius reappeared as the family's representative, and Lorian gradually began to sense that something was off about him.