After Lin Qian'er’s grandfather passes away, she marries the young master of the Gu family, the richest family in the capital, in accordance with their betrothal agreement. But Lin Qian'er, who dreams of a sweet romance, gets a rude awakening on the very second day of her marriage: there’s a child under one year old in the Gu household, and she’s going to be a stepmother! He enjoys tormenting his wife for a while, then spends the rest of his life chasing her.