Hayley Carson, leader of the Shadow Pack, is forced into an alliance through marriage with the heir of the Midnight Pack, her family's old enemy. To escape, she disguises herself as a humble omega and sneaks into their home to make them hate her within a year. But Benjamin Southwell has been suspicious of her from the start, while her extraordinary abilities gradually reveal her true identity. Between the mask and love, will Hayley run away or lose her heart?