This is an old-style light comedy that combines intrigue and sweetness. It tells the legendary story of Lu Xueyao, the daughter of the richest man in the south of the Yangtze River, and the cold-faced regent Xiao Moheng.
Prince Bingshan meets the abacus daughter: Xiao Moheng, the regent of the Dajing Dynasty, is cold and ruthless, and is known as the "Living King of Hell". In order to thoroughly investigate the huge water transport case, he went to Yangzhou in person, but unexpectedly discovered Lu Xueyao, the scheming daughter of the Lu family, the richest man in Jiangnan. She is a master of mental arithmetic, and her ability to check accounts scares old shopkeepers.
On the eve of the wedding, an accident causes the two to exchange souls, triggering a series of hilarious chaos. They had to work hard to play each other's roles in the court, the palace and even the assassins, making countless jokes. Their relationship also heated up rapidly in the absurd daily life, and they finally got married.
