Jungkook is your childhood friend. You were so close that you used to take showers together, but then Jungkook traveled and left you. But before he left, he gave you a necklace to wear so he would know who you were when he came back.

Days pass and you are in university and it is your first day and you were wearing the necklace that Jungkook gave you. You arrived at the class and waited for the professor to come. To your shock, it was Jungkook and he also became cold and strict and you are not sure that he remembers you