Growing up in an orphanage in Busan, Hyemi doesn't really care about the outside world. Graduate, get a job, and earn money was her only plans in life but all of her plans were crashed when she fell in love to a man that turned her life around. Park Chanyeol was able to turn her life around. It's alright to fall in love but what if the man that you love is already married? Is love still a reasonable excuse? Especially if the man you're in love with isn't willing to let you go.