Lucia, to safeguard her family's honor, shed her battle armor and married the down-and-out knight Leon. She poured all her resources into helping him become a high-ranking knight, but Leon got together with the scheming black princess Grace. He despised Lucia's background, framed her for treason, and even fantasized about making her raise Grace's child. After enduring for a while, Lucia tore off her disguise, exposed the conspiracy, successfully divorced the king, and when leaving with nothing, domineeringly told Leon to get out of her territory.
During this period, Lucia, wearing a mask, saved Count Servi from an assassination attempt. Servi, who feigned tuberculosis on the surface but was actually in disguise, was investigating a mole within the family. The clues pointed to Lucia, so he invited her to assist. In the course of their interaction, Servi vaguely suspected that she was the masked person. The enemy deliberately created conflicts in Lucia's territory, and Servi, for the sake of the overall situation, did not directly come to her rescue, resulting in damage to Lucia's territory. Lucia felt used as bait and withdrew from the investigation. After Servi obtained evidence of Leon's collaboration with the enemy, he apologized, and the two reconciled.
The two gradually fell in love, but their relationship was discovered by the old countess. Leon fanned the flames, saying that Lucia was a foreign lord. The old lady made things difficult for her in every way...
