"I am in love with the woman right in front of me."

Lilly, a maid serving as a substitute for the princess, arrives in a neighboring country to marry Prince Gray. Despite the prince being feared by those around him as "The Ice Reaper," he is endlessly gentle with Lilly, assuring her that he will always protect her. After surrendering herself to him, Lilly yearns for him to call her by her real name, deepening the affection between them. However, one day, her true identity is found out by the eighth prince! Despite having gained the eighth prince's trust through negotiations, Lilly is worried about possibly having to leave Prince Gray and confesses her love to him. Yet, after a certain incident, Lilly's lost memories come to the surface!