In the kingdom of Velmoria, where power is absolute and the king's word is law, Renji Kisaragi, a teenage assassin raised in secrecy, serves as the royal blade. Trained from childhood to be the kingdom's deadliest weapon, he executes orders without question-until he falls in love with Princess Evelynn Velmoria, the daughter of the tyrannical King Edric.
Unbeknownst to the people, King Edric is a brutal ruler who abuses his power, crushing rebellion with cruelty and treating his own daughter as a political tool rather than his child. Evelynn, despite being a princess, lives in a golden cage, suffering under her father's oppressive rule.
Renji, assigned as her personal guard, slowly begins to see the truth behind the royal family's lies. When he discovers the extent of the king's cruelty-witnessing Evelynn's abuse firsthand-he makes an unthinkable choice: betray the crown, abandon his duty, and turn against the kingdom to protect her.
But leaving the palace isn't so easy. The king brands him a traitor and orders his elite assassin unit, The Black Mantle, to hunt him down. Now Renji and Evelynn are fugitives, pursued by the kingdom's deadliest warriors, all while uncovering a conspiracy that threatens to plunge Velmoria into war.
To keep Evelynn safe, Renji embraces the darkness within him, unleashing his full killer instincts. But as his hands grow bloodier, the question remains: Can he protect the woman he loves without losing himself in the process?
Stunning and newly divorced, Jade Abara is living a peaceful life happily avoiding the male species to the best of her ability. But due to her circumstances and catching the eyes of two handsome strangers, things are about to change.