Since the day you move out with your family when you're 6 and decided to move into Seoul . Kris became your neighbour, therefore , he have been your childhood friend since then . Nobody wanted to be your friend when you went to school in Seoul other than Kris . You guys have a very close connection , he have never fails to cheer you up when you're sad and he is the only one who stand up for you against the bullies when you got bullied and threatened in school . He always been there for you