Wei Qian, the legitimate daughter of the Marquis of Yongning, was trapped by the inner demon of cowardice due to a hasty encounter in the south of the Yangtze River. She stayed behind closed doors all year round and became a joke in the capital. Xiao Ran, the eldest son of the Princess Royal Palace, lost his mother at a young age and ran away to pursue the murderer. He was cold and cruel, and was called the "evil prince" by the world. An imperial edict forcibly grants marriage, and everyone sighs that the weak lady has fallen into the tiger's mouth, and will be in fear for the rest of her life. Unexpectedly, after the marriage, Xiao Ran hid all his sharpness and returned home every day to accompany her, patiently protecting her from the prison of her heart, giving her a sword to protect her, and giving her all the love that had been hidden for many years; Wei Qian lost her timidity and cowardice, understood the gentleness under his cold face, let go of her past grudges, softened his violent temper with a gentle heart, and firmly held her position as mistress by managing the house with gentleness. The old movie in Jiangnan is a foreshadowing of fate, and staying together after marriage is a deep and determined love. From mutual testing to two-way confession, from heart estrangement to physical and mental mutual support, he finally finds the true love of his heart, and she finally finds a stable home. A fateful relationship of two-way redemption has been completed.