Please recommend an ancient novel where the female protagonist is reborn as the male protagonist's sister.

As soon as the female protagonist opened her eyes, she was reborn into the male protagonist's sister. Then, she realized that she had transmigrated into a novel. In the original novel, because the male protagonist's sister was framed by a maid or a nanny, she alienated the male protagonist and offended him. As a result, the male protagonist clearly knew that his sister was bullied by her family, but he still stood by and watched. However, when the female lead wore it on this younger sister, the plot changed and she hugged the male lead's thigh. PS: The male protagonist's sister has been wandering outside for many years. When he brought his sister home, the male protagonist's sister coincidentally took a knife for the male protagonist. The male protagonist was originally prepared to treat his sister well, but because of the servant girl's instigation, his sister said something bad and made the male protagonist sad. In the end, he watched his sister die. The female protagonist changed the plot by wearing the clothes on the younger sister. She did not say anything to make the male protagonist sad, but deliberately hugged the male protagonist's thigh.