A child who has the ability to see spirits, Yoon Seol-woo. Has reincarnated into Rosantine, a princess who could sees ghosts! She does her best to ignore the spirits in her second life, but... “Get out of my little sister’s body this instant!” She shouts this out in order to free her little sister from the possession of a spirit. If her abilities are found out, the only ending for her will be execution. If that’s the case, there was only one choice. “I heard Prince Chartreuse is going to die, right?” To save the empire’s 2nd prince, Chartreuse, with this power! “I pledge my life to you, Your Highness.”