On her seventeenth birthday, Shen Yingshuang receives a letter from her father: Return to the capital this year. We have something important to discuss.
She thinks it concerns her wedding date.
She has no idea that betrayal awaits her from three sides at once: her sect pushes her to marry into a foreign royal family in her sister's place, the crown prince publicly sets aside their ten-year engagement, and her mother kneels and begs her to take her sister's place in facing disaster.
She kneels in the Buddha hall all night. The next day, she calmly writes three letters severing ties: she cuts off relations with the Duke of Dingguo's household, ends her engagement to the crown prince, and vows never to see her sect again.
Then she puts on a wedding dress that doesn't fit and sets out to marry into Nanyue.
The Prince of Yong'an of Nanyue suffered a severe head injury twelve years ago while saving his younger brother, the emperor. His mind has remained that of a ten-year-old.
The entire capital laughs at her for marrying a fool. But on their wedding night, he awkwardly pulls osmanthus cakes from his sleeve. “You must be hungry. A Heng saved these for you.” It turns out the cleverest person is the most heartless, while the one everyone calls “foolish” gives her the most wholehearted love.
