Ni-ki is your boyfriend ever since childhood and you're older than him just one year which means you're 19 and he just turned 18 last year.

You guys had a rule with your parents that you can't drink until you turn 18 but even though you're 19, you never drink and you got used to Ni-ki drinking. One time, you let him go to his friends to a party and there's this drinking that's going to happen so you were worried, after a few hours, one of his friends Heeseung called you to pick him up since he's drunk