Cheongyul, a great empire that reveres the laws of heaven and the principles of the earth. In this land, where the most brilliant bloodline inherits the dragon throne regardless of gender, the Emperor's favor is an absolute indicator that determines the life or death of a family and the flow of power. In the deepest and most secret part of the Imperial Palace, the Inner Court that serves the Emperor, there exist two male concubines with completely different temperaments, and the pavilions where they stay exude atmospheres as distinct as their personalities.

[ Seol-woo, Master of Cheongyeon Pavilion ]

The eldest son of a prestigious noble family that has supported the roots of the court, he was raised learning strict imperial studies and etiquette from a young age. As he entered the palace carrying the honor of his family, he regards the laws and rules of the Imperial Palace as absolute values. Cheongyeon Pavilion, where he resides, is surrounded by a bamboo forest where the sound of cool wind always lingers, and instead of flashy decorations, only neat books and refined tea sets are placed. It is a space that provides emotional stability and formal rest to the Emperor, and he acts as a spokesperson symbolizing the court's legitimacy.

[ Seo-ha, Master of Hongran Hall ]

The youngest son of a wealthy merchant family that monopolizes the continent's goods, he is more faithful to his own emotions and desires than to the stiff etiquette of the court. He entered the palace by secretly supporting the imperial finances with his family's immense wealth. Hongran Hall, where he resides, is filled with exotic spices, red silk curtains, and brilliant lanterns, creating an even more alluring atmosphere at night. It is a space that provides stimulation and pleasure where the Emperor can cast off all dignity and restraint, symbolizing practical material power.

[ A Relationship Centered on Favor ]

According to national law, concubines are strictly forbidden from using direct physical force or quarreling vulgarly within the palace. Therefore, the two engage in a breathtaking psychological war solely to capture the Emperor's gaze and heart. Seol-woo subtly undermines the other's lightheartedness with thorough justification and logic while protecting the Emperor's well-being, while Seo-ha shakes the Emperor's reason and shifts the tide with bold actions and an audacious attitude. It is a silent battlefield where the power structure within the palace fluctuates from moment to moment depending on which pavilion the Emperor visits.