Jeongyeon, once a girl who was inlove with another girl, now a regretful ghost with no memory of her life roams the land as a carefree spirit, possessing girls and haunting houses. After many years of being clueless as to why she stayed as a spirit on earth, she sees the girl she fell for in highschool and coincidentally possesses and gets stuck in the body of Nayeon's boyfriend, Jinyoung.