20 Years old Japanese-Korean Girl, Park Yuuna, spend her holiday with vacation to her father's Hometown, South Korea. It's been a long time for her to visit her childhood place. She want to find a Happiness with a new place, new people for heal her broken heart. A great vacation is absolute things that she wanted to get there. But sometime, what we wanted and what we planned isn't going  well as we planned. And also Yuuna. She really want to wake up from the nightmare, and she almost reach it before she meet that guy who bring another nightmare, even worse.