He Nanfeng, the third young lady of the Wenjing Hou Mansion, who is erudite and gentle, smashed a good deck of cards to pieces without knowing someone in her past life, causing her family to be destroyed. After a frail woman withheld two years of revenge and killed her enemy, she fled and committed suicide in front of the tomb of her betrayed husband, only to wake up from her ten-year-old boudoir again. Now that she is back, she doesn't want to just be obsessed with poetry and calligraphy, but she has to put her intelligence and talent into a clear layout. Enemies need to be dealt with, the prince's house needs to be cleaned up, her husband needs to be chased early, relatives need to be protected, allies need to be made, and the future needs to be prepared. It is not easy to survive in this world. Kind-hearted people should actively use their wisdom and scheming. They should also hold high positions to protect the preciousness of life and benefit the world. The peerless Nanfeng wisdom sword comes out, and together with the cold and arrogant female general Li Zhaoyu, they are called the twin sisters of Beiyan. They have a life and death covenant, a graceful friendship, and help each other to lead a regret-free life~