Lin Suisui has been captivated by handsome men since childhood. Infatuated with the Crown Prince, Xie Zhaolin, she disguises herself and infiltrates the Eastern Palace as a secret guard, secretly admiring him from afar for three years. When political turmoil suddenly leads to the Crown Prince being stripped of his title and reduced to a commoner, she seizes the opportunity to spirit him away. She thinks her long-held wish is finally about to come true, unaware that his deposition is actually part of a secret plan to expose enemy spies. Xie Zhaolin has recognized her true identity all along and has silently protected her for years. As they navigate mistaken identities, amusing misunderstandings, and playful tests of each other's feelings, their affection deepens. Eventually, they shed their disguises, confess their true feelings, and find their way to a sweet, mutually devoted romance.