Cinderella at 2AM Season 1 Episode 3

Ju-won and Yoon-seo wake up both in despair after realising what they did and said to each other last night, intoxicated. They try to avoid one another at the company but end up face-to-face awkwardly. Meanwhile, Ju-won's mother reminds Yoon-seo of the promise she had made her, and Yoon-seo's brother gets into trouble at school for school bullying.