Hyun Seoha is born with the unique body of a 'Heavenly Phoenix', capable of conceiving the Emperor's heir.

His father, Grand Preceptor Hyun Yugo, schemes to use this power, planning to offer his son to the Emperor and seize influence. However, his ambitions are shattered when a rebellion by the Silver Wolf Tribe erupts the day before Seoha's royal marriage.

The new emperor, Eun Sangdam, who overthrew the Phoenix Kingdom, degrades Seoha and demands that she completely submit to him.

"There is no such thing as a precious Heavenly Phoenix in my country. There is only a lowly Scarlet Phoenix."

As repeated misunderstandings deepen the emotional rift between them, moments of unexpected affection and tenderness begin to slip through...