Xiao Huaijin, the Marquis of Pingyang, has been with the prince since he was a child and holds a heavy army. In order to take revenge, he was forced to marry Shen Tangwan, the daughter of his enemy.
In the army, she came across Lu Jiangwan, who was disguised as a woman to make a living. Although she was dressed in men's clothing, she could not hide her beauty. During the battle, she was injured while blocking an arrow for Xiao Huaijin, so he took her back to the Marquis Mansion to rest overnight. This special friendship aroused Shen Tangwan's jealousy, and she tried every means to force Lu Jiangwan to leave the house and set up a drug store to make a living.
After an accidental encounter, Shen Tangwan discovered the woman's identity, and became even more jealous and often made vicious plans. The prince also wanted to get closer to her because of his admiration.
During an escort, Xiao Huaijin finally learned her true identity, but she was feared by people in the dark!
In a desperate situation, Shen Tangwan killed Lu Jiangwan ruthlessly and pushed Lu Jiangwan off the cliff. Lu Jiangwan, who had lost her memory, had Xiao Huaijin's flesh and blood hidden in her belly, but was secretly forced to have an abortion by the prince Yan Junyao, who had always coveted her. He gave her a new identity, entered the palace and was drafted, and she was promoted to the position of princess step by step.
Blood feud, misplaced love, and intrigues are intertwined. When a lover who has lost his memory is forced to become his brother's concubine, how should we choose between love and hatred?