Secret we keep

Ellie pretends to be a fool in order to investigate the death of her parents and marries Brando for her sister, who is also pretending to be blind. As the two get along with each other, Ellie accidentally recovers her memory and discovers that she is Camilla, and eventually resolves the misunderstanding with Brando and exposes the conspiracy of Colter and the fake Camilla, and the two of them gain happiness and will welcome a new life.