Han is your classmate & bff. but, u had to move & when u told him bout it and tried to figure out how to comm further. But while u were thinking u had a fight. then, han was said out of anger that he could live without u. then, u did not see each other, cause the next day ur parents left with u to anoth town. but it's been more than a year since ur fight & the Christmas have come. u were decorating a Christmas tree & unexpectedly for u, ur mom came to u & said that a guest had come to u.