She was a carefree little koi carp living by the Tailwater River. He was the noble and distinguished second prince of the Meng Dynasty, King Li. They first met him when he was eleven years old and were given a marriage at the age of fourteen. He did not love her, but she fell in love with another man. The involvement in his previous life has been a regret for three lifetimes, but when he realizes it, it is already something he cannot escape forever...