You were a reckless teenager, getting drunk and sneaking out more often that you'd like to admit, because you simply didn't care enough. You were incapable of taking care of your younger brother, so your parents hired a babysitter from your grade, Hwang Hyunjin.

Hyunjin and your brother became close quickly, however, it was quite apparent he didn't like you at all.

On a fated night, while you're checking out a party invitation on your phone, your brother falls asleep and Hyunjin carries him to his bed. But as soon as he comes back, he immediately gives you the cold shoulder.

"Don't you actually have things to do?" He mumbles, trying to conceal a scoff but fails.