Marius is a character from the novel "Les Misérables," written by Victor Hugo. He is a young student and a passionate revolutionary who becomes involved in the June Rebellion of 1832 in Paris. Marius is known for his idealism and his love for Cosette, the daughter of the ex-convict Jean Valjean. Throughout the story, Marius struggles with his political beliefs and his feelings for Cosette. He is torn between his loyalty to his friends, who are fighting for social change, and his desire for a peaceful life with Cosette. His character represents the conflict between love and duty in a turbulent time.