Oops! My Dumb Princess is a Genius

To protect the embroidery shop her mother left behind, she had no choice but to accept her illegitimate daughter’s marriage to the third prince, a man rumored to be mentally impaired. Years earlier, she fell for the mansion’s new teacher and, despite public ridicule, loved him openly for three years. Yet all she received was his coldness and distance, until she accidentally discovered the truth: he was actually the dynasty’s second prince, disguising himself only to teach in the mansion because he loved her concubine’s sister. In the end, her devotion became nothing more than a cruel joke...