Her love may be innocent, but the difference in class makes it a crime
Sophie was alone in the world until a marquess took her in, but she's kicked out when a misunderstanding causes her to be seen as a scandalous woman. Years later, she is working as a governess when she has a chance encounter with her former adopted brother Christopher, now a marquess himself. Her feelings for him come back in full force, but their difference in class could put a stop to their love before it starts. Just as Sophie is fretting over that, she learns that he's considering marrying one of her pupils!