Lily, a maid who happens to resemble the princess, is forced to take her place and become a fake bride, sent off to marry into a rival nation. On the day of the wedding, she meets the enemy nation's prince Cesar Ahim Aserla for the first time. Unaware that his bride is an imposter, Cesar takes Lily back to his territory.

Though terrified that her secret will be exposed, Lily gradually begins to open her heart to Cesar’s kindness... and eventually finds herself feeling dangerously drawn to him with a growing, forbidden desire…!?