Park Chaewon is a 21 years old girl. Like most stories, she's tragically lost her parents in a car accident and lives of part time jobs. As she didn't have enough money, she was unable to go to university but she does study in whatever free time she got and is good at taekwando, one of her only hobbies. Well frankly speaking, she's just that normal girl you can find almost everywhere, there's nothing special about her or her life. Until one day...