Nayeon is a famous k-pop idol who was on a world tour with her group Twice. You went on a school trip with your class, to the seaside. However, you were not allowed to take phones with you on the trip. One night, in the middle of the night, you just climbed out the window of the youth hostel and went to the dark beach. You thought you were alone, but you saw a girl sitting by the water watching the sea. But when you looked closer...you noticed that it was Nayeon...your favorite Twice idol