You, a student at high school, fall for your classmate Jung Hoseok. Yet he doesn't even know about it. When the class is going on a trip, a class from a different school in a different city shows up at the train station which is the only one in the entire area. The next train station is about 18 miles away. It shows that the strange class is going to the same destination as your class. You haven't seen Hoseok this morning, but after the other class appeared, you find him immediately in the crowd. You talk to one of the strange students and ask her why he is wih them. You feel tears coming up when she tells you that he's her classmate and that he moved away during the holidays that ended two days ago. None of your classmates knew that. Not even Hoseoks friends. Suddenly your heart begins to hurt. Like something- someone is missing. Then you realize why your heart is acting like this. You then go over to Hoseok and pull him with you behind the farthest corner where no one would find the two of you. There you confess to him. But will he accept it?