Shen Qingci, the legitimate daughter of a general, suffered the tragedy of annihilating her family overnight. Her father was falsely accused of treason, and blood flowed all over the family. She escaped by chance and entered the palace incognito as a maid, hiding in hiding under the name "Aci". She only wanted to find out the truth and rectify the injustice for her family. Deep in the palace, she encounters Xiao Che, the young emperor who has ascended the throne and bears the yoke of imperial power. He is cold and suspicious on the surface, working hard to balance the government, but he hides an unknown loneliness in his heart; she harbors a blood feud and believes that he is the culprit who framed the Shen family, but as they get along day and night, she develops an undue fear for this "enemy". An entanglement that began with misrecognition, and was wrapped up in layers of power, hatred and suspicion: he mistakenly regarded her as a sharp knife stabbing him, and used imperial power to trap her by his side. The tenderness he showed from time to time was regarded by her as a temptation and calculation; she was obsessed with revenge, but in each confrontation, she caught a glimpse of his struggle under the imperial mask, and fell into the tear of "hate and love".
