Shen Shu and Xiao Jingheng were childhood sweethearts who had mutual affection, but due to imperial power struggles, she mistakenly became the former crown prince's fiancee. After seizing the throne and ascending, Xiao Jingheng brought her into the harem but summoned her rarely for a long time. Shen Shu mistakenly thought he was retaliating against an enemy, filled with grievance and guard. Misunderstandings and perils abounded deep within the palace; when the sealed truth was uncovered, the former bickerers finally faced their true feelings. The two broke down barriers, untangled misunderstandings, went from resentment to staying together, and in the treacherous court, fought wind and rain with deep affection, heading toward the rest of their lives hand in hand, composing a sweet-yet-bitful imperial childhood romance that became a legendary tale.